Philip Jose Farmer - My Sister's Brother 1960

THE SIXTH NIGHT on Mars, Lane wept. He sobbed loudly while tears ran down his cheeks. He smacked his right fist into the palm of his left hand until the flesh burned. He howled with loneliness. He swore the most obscene and blasphemous oaths he knew.

After a while, he quit weeping. He dried his eyes, downed a shot of Scotch, and felt much better.

He wasn't ashamed because he had bawled like a woman. After all, there had been a Man who had not been ashamed to weep. He could dissolve in tears the grinding stones within; he was the reed that bent before the wind, not the oak that toppled, roots and all.

Now, the weight and the ache in his breast gone, feeling almost cheerful, he made his scheduled report over the transceiver to the circum-Martian vessel five hundred and eight miles overhead.

Then he did what men must do any place in the universe. Afterward, he lay down in the bunk and opened the one personal book he had been allowed to bring along, an anthology of the world's greatest poetry.

He read here and there, running, pausing for only a line or two, then completing in his head the thousand-times murmured lines. Here and there he read, like a bee tasting the best of the nectar...

It is the voice of my beloved that knocketh, saying,

Open to me, my sister, my love, my dove, my undefiled...

We have a little sister,

And she hath no breasts;

What shall we do for our sister

In the day when she shall be spoken for?

Yea, though I walk through the valley of the shadow of death,

I will fear no evil for Thou art with me...

Come live with me and be my love

And we shall all the pleasures prove...

It lies not in our power to love or hate

For will in us is over-ruled by fate...

With thee conversing, I forget all time,

All seasons, and their change, all please alike...

He read on about love and man and woman until he had almost forgotten his troubles. His lids drooped; the book fell from his hand. But he roused himself, climbed out of the bunk, got down on his knees, and prayed that he be forgiven and that his blasphemy and despair be understood.

And he prayed that his four lost comrades be found safe and sound. Then he climbed back into the bunk and fell asleep.

At dawn he woke reluctantly to the alarm clocks ringing. Nevertheless, he did not fall back into sleep but rose, turned on the transceiver, filled a cup with water and instant, and dropped in a heat pill.

Just as he finished the coffee, he heard Captain Stroyansky's voice from the 'ceiver. Stroyansky spoke with barely a trace of Slavic accent.

"Cardigan Lane? You awake?"

"More or less. How are you?"

"If we weren't worried about all of you down there, we'd be fine."

"I know. Well, what are your orders?"

"There is only one thing to do, Lane. You must go look for the others. Otherwise, you cannot get back up to us. It takes at least two more men to pilot the rocket."

"Theoretically, one man can pilot the beast," replied Lane. "But it's uncertain. However, that doesn't matter. I'm leaving at once to look for the others. I'd do that even if you ordered otherwise."

Stroyansky chuckled. Then he barked like a seal. "The success of the expedition is more important than the fate of four men. Theoretically, anyway. But if I were in your shoes, and I'm glad I'm not, I would do the same. So, good luck, Lane."

"Thanks," said Lane. "I'll need more than luck. I'll also need God's help. I suppose He's here, even if the place does look God forsaken."

He looked through the transparent double plastic walls of the dome.

"The wind's blowing about twenty-five miles an hour. The dust is covering the tractor tracks. I have to get going before they're covered up entirely. My supplies are all packed; I've enough food, air, and water to last me six days.

It makes a big package, the air tanks and the sleeping tent bulk large. It's over a hundred Earth pounds, but here only about forty. I'm also taking a rope, a knife, a pickax, a flare pistol, half a dozen flares. And a walkie-talkie.

"It should take me two days to walk the thirty miles to the spot where the tracs last reported. Two days to look around. Two days to get back."

"You be back in five days!" shouted Stroyansky. "That's an order! It shouldn't take you more than one day to scout around. Don't take chances. Five days!"

And then, in a softer voice, "Good luck, and, if there is a God, may He help you!"

Lane tried to think of things to say, things that might perhaps go down with the 'Doctor Livingstone, I presume' category. But all he could say was, "So long."

Twenty minutes later, he closed behind him the door to the dome's pressure lock. He strapped on the towering pack and began to walk. But when he was about fifty yards from the base, he felt compelled to turn around for one long look at what he might never see again.

There, on the yellow-red felsite plain, stood the pressurized bubble that was to have been the home of the five men for a year.

Nearby squatted the glider that had brought them down, its enormous wings spreading far, its skids covered with the forever-blowing dust.

Straight ahead of him was the rocket, standing on its fins, pointing toward the blue-black sky, glittering in the Martian sun, shining with promise of power, escape from Mars, and return to the orbital ship. It had come down to the surface of Mars on the back of the glider in a hundred-and-twenty-mile an hour landing.

After it had dropped the two six-ton caterpillar tractors it carried, it had been pulled off the glider and tilted on end by winches pulled by those very tractors. Now it waited for him and for the other four men.

"I'll be back," he murmured to it. "And if I have to, I'll take you up by myself."

He began to walk, following the broad double tracks left by the tank. The tracks were faint, for they were two days old, and the blowing silicate dust had almost filled them. The tracks made by the first tank, which had left three days ago, were completely hidden.

The trail led northwest. It left the three-mile wide plain between two hills of naked rock and entered the quarter-mile corridor between two rows of vegetation. The rows ran straight and parallel from horizon to horizon, for miles behind him and miles ahead.

Lane, on the ground and close to one row, saw it for what it was. Its foundation was an endless three-foot high tube, most of whose bulk, like an icebergs, lay buried in the ground.

The curving sides were covered with blue-green lichenoids that grew on every rock or projection. From the spine of the tube, separated at regular intervals, grew the trunks of plants.

The trunks were smooth shiny blue-green pillars two feet thick and six feet high. Out of their tops spread radially many pencil-thin branches, like bats' fingers. Between the fingers stretched a blue-green membrane, the single tremendous leaf of the umbrella tree.

When Lane had first seen them from the glider as it hurtled over them, he had thought they looked like an army of giant hands uplifted to catch the sun. Giant they were, for each rib-supported leaf measured fifty feet across. And hands they were, hands to beg for and catch the rare gold of the tiny sun.

During the day, the ribs on the side nearest the moving sun dipped toward the ground, and the furthest ribs tilted upward. Obviously, the daylong maneuver was designed to expose the complete area of the membrane to the light, to allow not an inch to remain in shadow.

It was to be expected that strange forms of plant life would be found here. But structures built by animal life were not expected. Especially when they were so large and covered an eighth of the planet.

These structures were the tubes from which rose the trunks of the umbrella trees. Lane had tried to drill through the rocklike side of the tube. So hard was it, it had blunted one drill and had done a second no good before he had chipped off a small piece.

Contented for the moment with that, he had taken it to the dome, there to examine it under a microscope. After an amazed look, he had whistled. Embedded in the cementlike mass were plant cells. Some were partially destroyed; some, whole.

Further tests had shown him that the substance was composed of cellulose, a ligninlike stuff, various nucleic acids, and unknown materials.

He had reported his discovery and also his conjecture to the orbital ship. Some form of animal life had, at some time, chewed up and partially digested wood and then had regurgitated it as a cement. The tubes had been fashioned from the cement.

The following day he intended to go back to the tube and blast a hole in it. But two of the men had set out in a tractor on a field exploration. Lane, as radio operator for that day, had stayed in the dome. He was to keep in contact with the two, who were to report to him every fifteen minutes.

The tank had been gone about two hours and must have been about thirty miles away, when it had failed to report. Two hours later, the other tank, carrying two men, had followed the prints of the first party. They had gone about thirty miles from base and were maintaining continuous radio contact with Lane.

"There's a slight obstacle ahead," Greenberg had said: "It's a tube coming out at right angles from the one we've been paralleling. It has no plants growing from it. Not much of a rise, not much of a drop on the other side, either. We'll make it easy."

Then he had yelled.

That was all.

Now, the day after, Lane was on foot, following the fading trail. Behind him lay the base camp, close to the junction of the two canali known as Avernus and Tartarus.

He was between two of the rows of vegetation which formed Tartarus, and he was traveling northeastward, toward the Sirenum Mare, the so-called Siren Sea. The Mare, he supposed, would be a much broader group of tree-bearing tubes.

He walked steadily while the sun rose higher and the air grew warmer. He had long ago turned off his suit-heater. This was summer and close to the equator. At noon the temperature would be around seventy degrees Fahrenheit.

But at dusk, when the temperature had plunged through the dry air to zero, Lane was in his sleeping tent. It looked like a cocoon, being sausage-shaped and not much larger than his body. It was inflated so he could remove his helmet and breathe while he warmed himself from the battery-operated heater and ate and drank.

The tent was also very flexible; it changed its cocoon shape to a triangle while Lane sat on a folding chair from which hung a plastic bag and did that which every man must do.

During the daytime he did not have to enter the sleeping tent for this. His suit was ingeniously contrived so he could unflap the rear section and expose the necessary area without losing air or pressure from the rest of his suit.

Naturally, there was no thought of tempting the teeth of the Martian night. Sixty seconds at midnight were enough to get a severe frostbite where one sat down.

Lane slept until half an hour after dawn, ate, deflated the tent, folded it, stowed it, the battery, heater, food-box, and folding chair into his pack, threw away the plastic sack, shouldered the pack, and resumed his walk.

By noon the tracks faded out completely. It made little difference, for there was only one route the tanks could have taken. That was the corridor between the tubes and the trees.

Now he saw what the two tanks had reported. The trees on his right began to look dead. The trunks and leaves were brown, and the ribs drooped.

He began walking faster, his heart beating hard. An hour passed, and still the line of dead trees stretched as far as he could see.

"It must be about here," he said out loud to himself.

Then he stopped. Ahead was an obstacle.

It was the tube of which Greenberg had spoken, the one that ran at right angles to the other two and joined them.

Lane looked at it and thought that he could still hear Greenberg's despairing cry.

That thought seemed to turn a valve in him so that the immense pressure of loneliness, which he had succeeded in holding back until then, flooded in.

The blue-black of the sky became the blackness and infinity of space itself, and he was a speck of flesh in an immensity as large as Earth's land area, a speck that knew no more of this world than a newborn baby knows of his.

Tiny and helpless, like a baby...

No, he murmured to himself, not a baby. Tiny, yes. Helpless, no. Baby, no. I am a man, a man, an Earthman...

Earthman: Cardigan Lane. Citizen of the U.S.A. Born in Hawaii, the fiftieth state. Of mingled German, Dutch, Chinese, Japanese, Negro, Cherokee, Polynesian, Portuguese, Russian-Jewish, Irish, Scotch, Norwegian, Finnish, Czech, English, and Welsh ancestry.

Thirty-one years old. Five foot six. One hundred and sixty pounds. Brown-haired. Blue-eyed. Hawkfeatured, M.D. and Ph.D. Married. Childless. Methodist. Sociable mesomorphic mesovert.

Radio ham. Dog breeder. Deer hunter. Skin diver. Writer of first-rate but far from great poetry. All contained in his skin and his pressure suit, plus a love of companionship and life, an intense curiosity, and a courage. And now very much afraid of losing everything except his loneliness.

For some time he stood like a statue before the three-foot high wall of the tube. Finally, he shook his head violently, shook off his fear like a dog shaking off water.

Lightly, despite the towering pack on his back, he leaped up onto the top of the tube and looked on the other side, though there was nothing he had not seen before jumping.

The view before him differed from the one behind in only one respect. This was the number of small plants that covered the ground. Or rather, he thought, after taking a second look, he had never seen these plants this size before. They were foot-high replicas of the huge umbrella trees that sprouted from the tubes.

And they were not scattered at random, as might have been expected if they had grown from seeds blown by the wind. Instead, they grew in regular rows, the edges of the plants in one row separated from the other by about two feet.

His heart beat even faster. Such spacing must mean they were planted by intelligent life. Yet intelligent life seemed very improbable, given the Martian environment.

Possibly some natural condition might have caused the seeming artificiality of this garden. He would have to investigate.

Always with caution, though. So much depended on him: the lives of the four men, the success of the expedition. If this one failed, it might be the last. Many people on Earth were groaning loudly because of the cost of Space Arm and crying wildly for results that would mean money and power.

The field, or garden, extended for about three hundred yards. At its far end there was another tube at right angles to the two parallel ones. And at this point the giant umbrella plants regained their living and shining blue-green color.

The whole setup looked to Lane very much like a sunken garden. The square formation of the high tubes kept out the wind and most of the felsite flakes. The walls held the heat within the square.

Lane searched the top of the tube for bare spots where the metal plates of the caterpillar tractors' treads would have scraped off the lichenoids. He found none but was not surprised. The lichenoids grew phenomenally fast under the summertime sun.

He looked down at the ground on the garden side of the tube, where the tractors had presumably descended. Here there were no signs of the tractors' passage, for the little umbrellas grew up to within two feet of the edge of the tube, and they were uncrushed. Nor did he find any tracks at the ends of the tube where it joined the parallel rows.

He paused to think about his next step and was surprised to find himself breathing hard. A quick check of his air gauge showed him that the trouble wasn't an almost empty tank. No, it was the apprehension, the feeling of eeriness, of something wrong, that was causing his heart to beat so fast, to demand more oxygen.

Where could two tractors and four men have gone? And what could have caused them to disappear?

Could they have been attacked by some form of intelligent life? If that had happened, the unknown creatures had either carried off the six-ton tanks, or driven them away, or else forced the men to drive them off.

Where? How? By whom?

The hairs on the back of his neck stood up.

"Here is where it must have happened," he muttered to himself. "The first tank reported seeing this tube barring its way and said it would report again in another ten minutes. That was the last I heard from it. The second was cut off just as it was on top of the tube.

Now, what happened? There are no cities on the surface of Mars, and no indications of underground civilization. The orbital ship would have seen openings to such a place through its telescope..."

He yelled so loudly that he was deafened as his voice bounced off the confines of his helmet. Then he fell silent, watching the line of basketball-size blue globes rise from the soil at the far end of the garden and swiftly soar into the sky.

He threw back his head until the back of it was stopped by the helmet and watched the rising globes as they left the ground, swelling until they seemed to be hundreds of feet across. Suddenly, like a soap bubble, the topmost one disappeared. The second in line, having reached the height of the first, also popped. And the others followed.

They were transparent. He could see some white cirrus clouds through the blue of the bubbles.

Lane did not move but watched the steady string of globes spurt from the soil. Though startled, he did not forget his training. He noted that the globes, besides being semit-ransparent, rose at a right angle to the ground and did not drift with the wind. He counted them and got to forty-nine when they ceased appearing.

He waited for fifteen minutes. When it looked as if nothing more would happen, he decided that he must investigate the spot where the globes seemed to have popped out of the ground.

Taking a deep breath, he bent his knees and jumped out into the garden. He landed lightly about twelve feet out from the edge of the tube and between two rows of plants.

For a second he did not know what was happening, though he realized that something was wrong. Then he whirled around. Or tried to do so. One foot came up, but the other sank deeper.

He took one step forward, and the forward foot also disappeared into the thin stuff beneath the red-yellow dust. By now the other foot was too deep in to be pulled out.

Then he was hip-deep and grabbing at the stems of the plants to both sides of him. They uprooted easily, coming out of the soil, one clenched in each hand.

He dropped them and threw himself backward in the hope he could free his legs and lie stretched out on the jellylike stuff. Perhaps, if his body presented enough of an area, he could keep from sinking. And, after a while, he might be able to work his way to the ground near the tube. There, he hoped, it would be firm.

His violent effort succeeded. His legs came up out of the sticky semiliquid. He lay spread-eagled on his back and looked up at the sky through the transparent dome of his helmet. The sun was to his left; when he turned his head inside the helmet he could see the sun sliding down the arc from the zenith.

It was descending at a slightly slower pace than on Earth, for Mars's day was about forty minutes longer. He hoped that, if he couldn't regain solid ground, he could remain suspended until evening fell.

By then this quagmire would be frozen enough for him to rise and walk up on it. Provided that he got up before he himself was frozen fast.

Meanwhile, he would follow the approved method of saving oneself when trapped in quicksand. He would roll over quickly, once, and then spread-eagle himself again. By repeating this maneuver, he might eventually reach that bare strip of soil at the tube.

The pack on his back prevented him from rolling. The straps on his shoulders would have to be loosened.

He did so, and at the same time felt his legs sinking. Their weight was pulling them under, whereas the air tanks in the pack, the air tanks strapped to his chest, and the bubble of his helmet gave buoyancy to the upper part of his body.

He turned over on his side, grabbed the pack, and pulled himself up on it. The pack, of course, went under. But his legs were free, though slimy with liquid and caked with dust. And he was standing on top of the narrow island of the pack.

The thick jelly rose up to his ankles while he considered two courses of action.

He could squat on the pack and hope that it would not sink too far before it was stopped by the permanently frozen layer that must exist...

How far? He had gone down hip-deep and felt nothing firm beneath his feet. And... He groaned. The tractors! Now he knew what had happened to them. They had gone over the tube and down into the garden, never suspecting that the solid-seeming surface covered this quagmire.

And down they had plunged, and it had been Greenberg's horrified realization of what lay beneath the dust that had made him cry out, and then the stuff had closed over the tank and its antenna, and the transmitter, of course, had been cut off.

He must give up his second choice because it did not exist. To get to the bare strip of soil at the tube would be useless. It would be as unfirm as the rest of the garden. It was at that point that the tanks must have fallen in.

Another thought came to him: that the tanks must have disturbed the orderly arrangement of the little umbrellas close to the tube. Yet there was no sign of such a happening. Therefore, somebody-must have rescued the plants and set them up again.

That meant that somebody might come along in time to rescue him.

Or to kill him, he thought.

In either event, his problem would be solved.

Meanwhile, he knew it was no use to make a jump from the pack to the strip at the tube. The only thing to do was to stay on top of the pack and hope it didn't sink too deeply.

However, the pack did sink. The jelly rose swiftly to his knees, then his rate of descent began slowing. He prayed, not for a miracle but only that the buoyancy of the pack plus the tank on his chest would keep him from going completely under.

Before he had finished praying, he had stopped sinking. The sticky stuff had risen no higher than his breast and had left his arms free.

He gasped with relief but did not feel overwhelmed with joy. In less than four hours the air in his tank would be exhausted. Unless he could get another tank from the pack, he was done for.

He pushed down hard on the pack and threw his arms up in the air and back in the hope his legs would rise again and he could spread-eagle. If he could do that, then the pack, relieved of his weight, might rise to the surface. And he could get another tank from it.

But his legs, impeded by the stickiness, did not rise far enough, and his body, shooting off in reaction to the kick, moved a little distance from the pack. It was just far enough so that when the legs inevitably sank again, they found no platform on which to be supported. Now he had to depend entirely on the lift of his air tank.

It did not give him enough to hold him at his former level; this time he sank until his arms and shoulders were nearly under, and only his helmet stuck out.

He was helpless.

Several years from now the second expedition, if any, would perhaps see the sun glinting off his helmet and would find his body stuck like a fly in glue.

If that does happen, he thought, I will at least have been of some use; my death will warn them of this trap. But I doubt if they'll find me. I think that Somebody or Something will have removed me and hidden me.

Then, feeling an inrush of despair, he closed his eyes and murmured some of the words he had read that last night in the base, though he knew them so well it did not matter whether he had read them recently or not.

Yea,though I walk through the valley of the shadow of death, I will fear no evil; for Thou art with me.

Repeating that didn't lift the burden of hopelessness. He felt absolutely alone, deserted by everybody, even by his Creator. Such was the desolation of Mars.

But when he opened his eyes, he knew he was not alone. He saw a Martian.

A hole had appeared in the wall of the tube to his left. It was a round section about four feet across, and it had sunk in as if it were a plug being pulled inward, as indeed it was.

A moment later a head popped out of the hole. The size of a Georgia watermelon, it was shaped like a football and was as pink as a baby's bottom. Its two eyes were as large as coffee cups and each was equipped with two vertical lids.

It opened its two parrotlike beaks, ran out a very long tubular tongue, withdrew the tongue, and snapped the beak shut. Then it scuttled out from the hole to reveal a body also shaped like a football and only three times as large as its head.

The pinkish body was supported three feet from the ground on ten spindly spidery legs, five on each side. Its legs ended in broad round pads on which it ran across the jelly-mire surface, sinking only slightly. Behind it streamed at least fifty others.

These picked up the little plants that Lane had upset in his struggles and licked them clean with narrow round tongues that shot out at least two feet. They also seemed to communicate by touching their tongues, as insects do with antennae.

As he was in the space between two rows, he was not involved in the setting up of the dislodged plants. Several of them ran their tongues over his helmet, but these were the only ones that paid him any attention.

It was then that he began to stop dreading that they might attack him with their powerful-looking beaks. Now he broke into a sweat at the idea that they might ignore him completely.

That was just what they did. After gently embedding the thin roots of the plantlets in the sticky stuff, they raced off toward the hole in the tube.

Lane, overwhelmed with despair, shouted after them, though he knew they couldn't hear him through his helmet and the thin air even if they had hearing organs.

"Don't leave me here to die!"

Nevertheless, that was what they were doing. The last one leaped through the hole, and the entrance stared at him like the round black eye of Death itself.

He struggled furiously to lift himself from the mire, not caring that he was only exhausting himself.

Abruptly, he stopped fighting and stared at the hole.

A figure had crawled out of it, a figure in a pressure-suit.

Now he shouted with joy. Whether the figure was Martian or not, it was built like a member of Homo sapiens . It could be presumed to be intelligent and therefore curious.

He was not disappointed. The suited being stood up on two hemispheres of shiny red metal and began walking toward him in a sliding fashion. Reaching him, it handed him the end of a plastic rope it was carrying under its arm.

He almost dropped it. His rescuer's suit was transparent. It was enough of a shock to see clearly the details of the creature's body, but the sight of the two heads within the helmet caused him to turn pale.

The Martian slidewalked to the tube from which Lane had leaped. It jumped lightly from the two bowls on which it had stood, landed on the three-foot high top of the tube, and began hauling Lane out from the mess. He came out slowly but steadily and soon was scooting forward, gripping the rope.

When he reached the foot of the tube, he was hauled on up until he could get his feet in the two bowls. It was easy to jump from them to a place beside the biped.

It unstrapped two more bowls from its back, gave them to Lane, then lowered itself on the two in the garden. Lane followed it across the mire.

Entering the hole, he found himself in a chamber so low he had to crouch. Evidently, it had been constructed by the dekapeds and not by his companion for it, too, had to bend its back and knees.

Lane was pushed to one side by some dekapeds. They picked up the thick plug, made of the same gray stuff as the tube walls, and sealed the entrance with it. Then they shot out of their mouths strand after strand of gray spiderwebby stuff to seal the plug.

The biped motioned Lane to follow, and it slid down a tunnel which plunged into the earth at a forty-five degree angle. It illuminated the passage with a flashlight which it took from its belt. They came into a large chamber which contained all of the fifty dekapeds.

These were waiting motionless. The biped, as if sensing Lane's curiosity, pulled off its glove and held it before several small vents in the wall. Lane removed his glove and felt warm air flowing from the holes.

Evidently this was a pressure chamber, built by the ten-legged things. But such evidence of intelligent engineering did not mean that these things had the individual intelligence of a man. It could mean group intelligence such as Terrestrial insects possess.

After a while, the chamber was filled with air. Another plug was pulled; Lane followed the dekapeds and his rescuer up another forty-five degree tunnel. He estimated that he would find himself inside the tube from which the biped had first come. He was right. He crawled through another hole into it.

And a pair of beaks clicked as they bit down on his helmet!

Automatically, he shoved at the thing, and under the force of his blow the dekaped lost its bite and went rolling on the floor, a bundle of thrashing legs.

Lane did not worry about having hurt it. It did not weigh much, but its body must be tough to be able to plunge without damage from the heavy air inside the tube into the almost-stratospheric conditions outside.

However, he did reach for the knife at his belt. But the biped put its hand on his arm and shook one of its heads.

Later, he was to find out that the seeming bite must have been an accident. Always -- with one exception -- the leggers were to ignore him.

He was also to find that he was lucky. The leggers had come out to inspect their garden because, through some unknown method of detection, they knew that the plantlets had been disturbed.

The biped normally would not have accompanied them. However, today, its curiosity aroused because the leggers had gone out three times in three days, it had decided to investigate.

The biped turned out its flashlight and motioned to Lane to follow. Awkwardly, he obeyed. There was light, but it was dim, a twilight. Its source was the many creatures that hung from the ceiling of the tube.

These were three feet long and six inches thick, cylindrical, pinkish-skinned, and eyeless. A dozen frondlike limbs waved continuously, and their motion kept air circulating in the tunnel.

Their cold firefly glow came from two globular pulsing organs which hung from both sides of the round loose-lipped mouth at the free end of the creature. Slime drooled from the mouth, and dripped onto the floor or into a narrow channel which ran along the lowest part of the sloping floor.

Water ran in the six-inch deep channel, the first native water he had seen. The water picked up the slime and carried it a little way before it was gulped up by an animal that lay on the bottom of the channel.

Lane's eyes adjusted to the dimness until he could make out the water-dweller. It was torpedo-shaped and without eyes or fins. It had two openings in its body; one obviously sucked in water, the other expelled it.

He saw at once what this meant. The water at the North Pole melted in the summertime and flowed into the far end of the tube system. Helped by gravity and by the pumping action of the line of animals in the channel, the water was passed from the edge of the Pole to the equator.

Leggers ran by him on mysterious errands. Several, however, halted beneath some of the downhanging organisms. They reared up on their hind five legs and their tongues shot out and into the open mouths by the glowing balls.

At once, the fireworm -- as Lane termed it -- its cilia waving wildly, stretched itself to twice its former length. Its mouth met the beak of the legger, and there was an exchange of stuff between their mouths.

Impatiently, the biped tugged at Lane's arm. He followed it down the tube. Soon they entered a section where pale roots came down out of holes in the ceiling and spread along the curving walls, gripping them, then becoming a network of many thread-thin rootlets that crept across the floor and into the water of the channel.

Here and there a dekaped chewed at a root and then hurried off to offer a piece to the mouths of the fireworms.

After walking for several minutes, the biped stepped across the stream. It then began walking as closely as possible to the wall, meanwhile looking apprehensively at the other side of the tunnel, where they had been walking.

Lane also looked but could see nothing at which to be alarmed. There was a large opening at the base of the wall which evidently led into a tunnel.

This tunnel, he presumed, ran underground into a room or rooms, for many leggers dashed in and out of it. And about a dozen, larger than average, paced back and forth like sentries before the hole.

When they had gone about fifty yards past the opening, the biped relaxed. After it had led Lane along for ten minutes, it stopped. Its naked hand touched the wall. He became aware that the hand was small and delicately shaped, like a woman's.

A section of the wall swung out. The biped turned and bent down to crawl into the hole, presenting buttocks and legs femininely rounded, well shaped. It was then that he began thinking of it as a female.

Yet the hips, though padded with fatty tissue, were not broad. The bones were not widely separated to make room to carry a child. Despite their curving, the hips were relatively as narrow as a man's.

Behind them, the plug swung shut. The biped did not turn on her flashlight, for there was illumination at the end of the tunnel. The floor and walls were not of the hard gray stuff nor of packed earth. They seemed vitrified, as if glassed by heat.

She was waiting for him when he slid off a three-foot high ledge into a large room. For a minute he was blinded by the strong light. After his eyes adjusted, he searched for the source of light but could not find it. He did observe that there were no shadows in the room.

The biped took off her helmet and suit and hung them in a closet. The door slid open as she approached and closed when she walked away.

She signaled that he could remove his suit. He did not hesitate. Though the air might be poisonous, he had no choice. His tank would soon be empty. Moreover, it seemed likely that the atmosphere contained enough oxygen.

Even then he had grasped the idea that the leaves of the umbrella plants, which grew out of the top of the tubes, absorbed sunlight and traces of carbon dioxide.

Inside the tunnels, the roots drew up water from the channel and absorbed the great quantity of carbon dioxide released by the dekapeds. Energy of sunlight converted gas and liquid into glucose and oxygen, which were given off in the tunnels.

Even here, in this deep chamber which lay beneath and to one side of the tube, a thick root penetrated the ceiling and spread its thin white web over the walls. He stood directly beneath the fleshy growth as he removed his helmet and took his first breath of Martian air.

Immediately afterward, he jumped. Something wet had dropped on his forehead. Looking up, he saw that the root was excreting liquid from a large pore. He wiped the drop off with his finger and tasted it. It was sticky and sweet.

Well, he thought, the tree must normally drop sugar in water. But it seemed to be doing so abnormally fast, because another drop was forming.

Then it came to him that perhaps this was so because it was getting dark outside and therefore cold. The umbrella trees might be pumping the water in their trunks into the warm tunnels. Thus, during the bitter subzero night, they'd avoid freezing and swelling up and cracking wide open.

It seemed a reasonable theory.

He looked around. The place was half living quarters, half biological laboratory. There were beds and tables and chairs and several unidentifiable articles. One was a large black metal box in a corner. From it, at regular intervals, issued a stream of tiny blue bubbles.

They rose to the ceiling, growing larger as they did so. On reaching the ceiling they did not stop or burst but simply penetrated the vitrification as if it did not exist.

Lane now knew the origin of the blue globes he had seen appear from the surface of the garden. But their purpose was still obscure.

He wasn't given much time to watch the globes. The biped took a large green ceramic bowl from a cupboard and set it on a table. Lane eyed her curiously, wondering what she was going to do. By now he had seen that the second head belonged to an entirely separate creature.

Its slim four-foot length of pinkish skin was coiled about her neck and torso; its tiny flat-faced head turned toward Lane; its snaky light blue eyes glittered. Suddenly, its mouth opened and revealed toothless gums, and its bright red tongue, mammalian, not at all reptilian, thrust out at him.

The biped, paying no attention to the worm's actions, lifted it from her. Gently, cooing a few words in a soft many-voweled language, she placed it in the bowl. It settled inside and looped around the curve, like a snake in a pit.

The biped took a pitcher from the top of a box of red plastic. Though the box was not connected to any visible power source, it seemed to be a stove. The pitcher contained warm water which she poured into the bowl, half filling it. Under the shower, the worm closed its eyes as if it were purring soundless ecstasy.

Then the biped did something that alarmed Lane.

She leaned over the bowl and vomited into it.

He stepped toward her. Forgetting the fact that she couldn't understand him, he said, "Are you sick?"

She revealed human-looking teeth in a smile meant to reassure him, and she walked away from the bowl. He looked at the worm, which had its head dipped into the mess. Suddenly, he felt sick, for he was sure that it was feeding off the mixture. And he was equally certain that she fed the worm regularly with regurgitated food.

It didn't cancel his disgust to reflect that he shouldn't react to her as he would to a Terrestrial. He knew that she was totally alien and that it was inevitable that some of her ways would repel, perhaps even shock him. Rationally, he knew this. But if his brain told him to understand and forgive, his belly said to loathe and reject.

His aversion was not much lessened by a close scrutiny of her as she took a shower in a cubicle set in the wall. She was about five feet tall and slim as a woman should be slim, with delicate bones beneath rounded flesh.

Her legs were human; in nylons and high heels they would have been exciting -- other things being equal. However, if the shoes had been toeless, her feet would have caused much comment. They had four toes.

Her long beautiful hands had five fingers. These seemed nail-less, like the toes, though a closer examination later showed him they did bear rudimentary nails.

She stepped from the cubicle and began toweling herself, though not before she motioned to him to remove his suit and also to shower. He stared intently back at her until she laughed a short embarrassed laugh. It was feminine, not at all deep. Then she spoke.

He closed his eyes and was hearing what he had thought he would not hear for years: a woman's voice. Hers was extraordinary: husky and honeyed at the same time.

But when he opened his eyes, he saw her for what she was. No woman. No man. What? It? No. The impulse to think her, she , was too strong.

This, despite her lack of mammaries. She had a chest, but no nipples, rudimentary or otherwise. Her chest was a man's, muscled under the layer of fat which subtly curved to give the impression that beneath it... budding breasts?

No, not this creature. She would never suckle her young. She did not even bear them alive, if she did bear. Her belly was smooth, undimpled with a navel.

Smooth also was the region between her legs, hairless, unbroken, as innocent of organ as if she were a nymph painted for some Victorian children's book.

It was that sexless joining of the legs that was so horrible. Like the white belly of a frog, thought Lane, shuddering.

At the same time, his curiosity became even stronger. How did this thing mate and reproduce?

Again she laughed and smiled with fleshy pale-red humanly everted lips and wrinkled a short, slightly uptilted nose and ran her hand through thick straight red-gold fur. It was fur, not hair, and it had a slightly oily sheen, like a water-dwelling animal's.

The face itself, though strange, could have passed for human, but only passed. Her cheekbones were very high and protruded upward in an unhuman fashion. Her eyes were dark blue and quite human. This meant nothing. So were an octopus's eyes.

She walked to another closet, and as she went away from him he saw again that though the hips were curved like a woman's they did not sway with the pelvic displacement of the human female.

The door swung momentarily open, revealed the carcasses of several dekapeds, minus their legs, hanging on hooks. She removed one, placed it on a metal table, and out of the cupboard took a saw and several knives and began cutting.

Because he was eager to see the anatomy of the dekaped, he approached the table. She waved him to the shower. Lane removed his suit. When he came to the knife and ax he hesitated, but, afraid she might think him distrustful, he hung up the belt containing his weapons beside the suit. However, he did not take off his clothes because he was determined to view the inner organs of the animal. Later, he would shower.

The legger was not an insect, despite its spidery appearance. Not in the Terrestrial sense, certainly. Neither was it a vertebrate. Its smooth hairless skin was an animal's, as lightly pigmented as a blond Swedes. But, though it had an endoskeleton, it had no backbone. Instead, the body bones formed a round cage. Its thin ribs radiated from a cartilaginous collar which adjoined the back of the head.

The ribs curved outward, then in, almost meeting at the posterior. Inside the cage were ventral lung sacs, a relatively large heart, and liverlike and kidneylike organs. Three arteries, instead of the mammalian two, left the heart. He couldn't be sure with such a hurried examination, but it looked as if the dorsal aorta, like some Terrestrial reptiles, carried both pure and impure blood.

There were other things to note. The most extraordinary was that, as far as he could discern, the legger had no digestive system. It seemed to lack both intestines and anus unless you would define as an intestine a sac which ran straight through from the throat halfway into the body.

Further, there was nothing he could identify as reproductive organs, though this did not mean that it did not possess them. The creature's long tubular tongue, cut open by the biped, exposed a canal running down the length of tongue from its open tip to the bladder at its base. Apparently these formed part of the excretory system.

Lane wondered what enabled the legger to stand the great pressure differences between the interior of the tube and the Martian surface. At the same time he realized that this ability was no more wonderful than the biological mechanism which gave whales and seals the power to endure without harm the enormous pressures a half mile below the sea's surface.

The biped looked at him with round and very pretty blue eyes, laughed, and then reached into the chopped open skull and brought out the tiny brain.

"Hauaimi," she said slowly. She pointed to her head, repeated, "Hauaimi," and then indicated his head. "Hauaimi."

Echoing her, he pointed at his own head. "Hauaimi. Brain."

"Brain," she said, and she laughed again.

She proceeded to call out the organs of the legger which corresponded to hers. Thus, the preparations for the meal passed swiftly as he proceeded from the carcass to other objects in the room.

By the time she had fried the meat and boiled strips of the membranous leaf of the umbrella plant, and also added from cans various exotic foods, she had exchanged at least forty words with him. An hour later, he could remember twenty.

There was one thing yet to learn. He pointed to himself and said, "Lane."

Then he pointed to her and gave her a questioning look.

"Mahrseeya," she said.

"Martia?" he repeated. She corrected him, but he was so struck by the resemblance that always afterward he called her that. After a while, she would give up trying to teach him the exact pronunciation.

Martia washed her hands and poured him a bowlful of water. He used the soap and towel she handed him, then walked to the table where she stood waiting. On it was a bowl of thick soup, a plate of fried brains, a salad of boiled leaves and some unidentifiable vegetables, a plate of ribs with thick dark legger meat, hard-boiled eggs, and little loaves of bread.

Martia gestured for him to sit down. Evidently her code did not allow her to sit down before her guest did. He ignored his chair, went behind her, put his hand on her shoulder, pressed down, and with the other hand slid her chair under her. She turned her head to smile up at him. Her fur slid away to reveal one lobeless pointed ear.

He scarcely noticed it, for he was too intent on the half-repulsive, half heart-quickening sensation he got when he touched her skin. It had not been the skin itself that caused that, for she was soft and warm as a young girl. It had been the idea of touching her.

Part of that, he thought as he seated himself, came from her nakedness. Not because it revealed her sex but because it revealed her lack of it. No breasts, no nipples, no navel, no pubic fold or projection. The absence of these seemed wrong, very wrong, unsettling. It was a shameful thing that she had nothing of which to be ashamed.

That's a queer thought, he said to himself. And for no reason, he became warm in the face.

Martia, unnoticing, poured from a tall bottle a glassful of dark wine. He tasted it. It was exquisite, no better than the best Earth had to offer but as good.

Martia took one of the loaves, broke it into two pieces, and handed him one. Holding the glass of wine in one hand and the bread in the other, she bowed her head, closed her eyes, and began chanting.

He stared at her. This was a prayer, a grace-saying. Was it the prelude to a sort of communion, one so like Earths it was startling?

Yet, if it were, he needn't be surprised. Flesh and blood, bread and wine: the symbolism was simple, logical, and might even be universal.

However, it was possible that he was creating parallels that did not exist. She might be enacting a ritual whose origin and meaning were like nothing of which he had ever dreamed.

If so, what she did next was equally capable of misinterpretation. She nibbled at the bread, sipped the wine, and then plainly invited him to do the same. He did so. Martia took a third and empty cup, spat a piece of wine-moistened bread into the cup, and indicated that he was to imitate her.

After he did, he felt his stomach draw in on itself. For she mixed the stuff from their mouths with her finger and then offered it to him. Evidently, he was to put the finger in his mouth and eat from it.

So the action was both physical and metaphysical. The bread and the wine were the flesh and blood of whatever divinity she worshiped. More, she, being imbued with the body and the spirit of the god, now wanted to mingle hers and that of the god's with his.

What I eat of the god's, I become. What you eat of me, you become. What I eat of you, I become. Now we three are become one.

Lane, far from being repelled by the concept, was excited. He knew that there were probably many Christians who would have refused to share in the communion because the ritual did not have the same origins or conform to theirs. They might even have thought that by sharing they were subscribing to an alien god.

Such an idea Lane considered to be not only narrow-minded and inflexible, but illogical, uncharitable, and ridiculous. There could be but one Creator; what names the creature gave to the Creator did not matter.

Lane believed sincerely in a personal god, one who took note of him as an individual. He also believed that mankind needed redeeming and that a redeemer had been sent to Earth.

And if other worlds needed redeeming, then they too would have gotten or would get a redeemer. He went perhaps further than most of his fellow religionists, for he actually made an attempt to practice love for mankind.

This had given him somewhat of a reputation as a fanatic among his acquaintances and friends. However, he had been restrained enough not to make himself too much of a nuisance, and his genuine warmheartedness had made him welcome in spite of his eccentricity.

Six years before, he had been an agnostic. His first trip into space had converted him. The overwhelming experience had made him realize shatteringly what an insignificant being he was, how awe-inspiringly complicated and immense was the universe, and how much he needed a framework within which to be and to become.

The strangest feature about his conversion, he thought afterward, was that one of his companions on that maiden trip had been a devout believer who, on returning to Earth, had renounced his own sect and faith and become a complete atheist.

He thought of this as he took her proffered finger in his mouth and sucked the paste off it.

Then obeying her gestures, he dipped his own finger into the bowl and put it between her lips.

She closed her eyes and gently mouthed the finger. When he began to withdraw it, he was stopped by her hand on his wrist. He did not insist on taking the finger out, for he wanted to avoid offending her. Perhaps a long time interval was part of the rite.

But her expression seemed so eager and at the same time so ecstatic, like a hungry baby just given the nipple, that he felt uneasy. After a minute, seeing no indication on her part that she meant to quit, he slowly but firmly pulled the finger loose. She opened her eyes and sighed, but she made no comment. Instead, she began serving his supper.

The hot thick soup was delicious and invigorating. Its texture was somewhat like the plankton soup that was becoming popular on hungry Earth, but it had no fishy flavor. The brown bread reminded him of rye.

The legger meat was like wild rabbit, though it was sweeter and had an unidentifiable tang. He took only one bite of the leaf salad and then frantically poured wine down his throat to wash away the burn.

Tears came to his eyes, and he coughed until she spoke to him in an alarmed tone. He smiled back at her but refused to touch the salad again. The wine not only cooled his mouth, it filled his veins with singing. He told himself he should take no more. Nevertheless, he finished his second cup before he remembered his resolve to be temperate.

By then it was too late. The strong liquor went straight to his head; he felt dizzy and wanted to laugh. The events of the day, his near-escape from death, the reaction to knowing his comrades were dead, his realization of his present situation, the tension caused by his encounters with the dekapeds, and his unsatisfied curiosity about Martia's origins and the location of others of her kind, all these combined to produce in him a half-stupor, half-exuberance.

He rose from the table and offered to help Martia with the dishes. She shook her head and put the dishes in a washer. In the meantime, he decided that he needed to wash off the sweat, stickiness, and body odor left by two days of travel.

On opening the door to the shower cubicle, he found that there wasn't room enough to hang his clothes in it. So, uninhibited by fatigue and wine, also mindful that Martia, after all, was not a female, he removed his clothes.

Martia watched him, and her eyes became wider with each garment shed. Finally, she gasped and stepped back and turned pale.

"It's not that bad," he growled, wondering what had caused her reaction. "After all, some of the things I've seen around here aren't too easy to swallow."

She pointed with a trembling finger and asked him something in a shaky voice.

Perhaps it was his imagination, but he could swear she used the same inflection as would an English speaker.

"Are you sick? Are the growths malignant?"

He had no words with which to explain, nor did he intend to illustrate function through action. Instead, he closed the door of the cubicle after him and pressed the plate that turned on the water.

The heat of the shower and the feel of the soap, of grime and sweat being washed away, soothed him somewhat, so that he could think about matters he had been too rushed to consider.

First, he would have to learn Martia's language or teach her his. Probably both would happen at the same time. Of one thing he was sure. That was that her intentions toward him were, at least at present, peaceful.

When she had shared communion with him, she had been sincere. He did not get the impression that it was part of her cultural training to share bread and wine with a person she intended to kill.

Feeling better, though still tired and a little drunk, he left the cubicle. Reluctantly, he reached for his dirty shorts. Then he smiled.

They had been cleaned while he was in the shower. Martia, however, paid no attention to his smile of pleased surprise but, grim-faced, she motioned to him to lie down on the bed and sleep.

Instead of lying down herself, however, she picked up a bucket and began crawling up the tunnel. He decided to follow her, and, when she saw him, she only shrugged her shoulders.

On emerging into the tube, Martia turned on her flashlight. The tunnel was in absolute darkness. Her beam playing on the ceiling, showed that the glowworms had turned out their lights. There were no leggers in sight.

She pointed the light at the channel so he could see that the jetfish were still taking in and expelling water. Before she could turn the beam aside, he put his hand on her wrist and with his other hand lifted a fish from the channel.

He had to pull it loose with an effort, which was explained when he turned the torpedo-shaped creature over and saw the column of flesh hanging from its belly. Now he knew why the reaction of the propelled water did not shoot them backward. The ventral-foot acted as a suction pad to hold them to the floor of the channel.

Somewhat impatiently, Martia pulled away from him and began walking swiftly back up the tunnel. He followed her until she came to the opening in the wall which had earlier made her so apprehensive.

Crouching, she entered the opening, but before she had gone far she had to move a tangled heap of leggers to one side. These were the large great-beaked ones he had seen guarding the entrance. Now they were asleep at the post.

If so, he reasoned, then the thing they guarded against must also be asleep.

What about Martia? How did she fit into their picture? Perhaps she didn't fit into their picture at all. She was absolutely alien, something for which their instinctual intelligence was not prepared and which, therefore, they ignored. That would explain why they had paid no attention to him when he was mired in the garden.

Yet there must be an exception to that rule. Certainly Martia had not wanted to attract the sentinels' notice the first time she had passed the entrance.

A moment later he found out why. They stepped into a huge chamber which was at least two hundred feet square. It was as dark as the tube, but during the walking period it must have been very bright because the ceiling was jammed with glowworms.

Martia's flash raced around the chamber, showing him the piles of sleeping leggers. Then, suddenly, it stopped. He took one look, and his heart raced, and the hairs on the back of his neck rose.

Before him was a worm three feet high and twenty feet long.

Without thinking, he grabbed hold of Martia to keep her from coming closer to it. But even as he touched her, he dropped his hand. She must know what she was doing.

Martia pointed the flash at her own face and smiled as if to tell him not to be alarmed. And she touched his arm with a shyly affectionate gesture.

For a moment, he didn't know why. Then it came to him that she was glad because he had been thinking of her welfare. Moreover, her reaction showed she had recovered from her shock at seeing him unclothed.

He turned from her to examine the monster. It lay on the floor, asleep, its great eyes closed behind vertical slits. It had a huge head, football-shaped like those of the little leggers around it. Its mouth was big, but the beaks were very small, horny warts on its lips.

The body, however, was that of a caterpillar worm's, minus the hair. Ten little useless legs stuck out of its side, too short even to reach the floor. Its side bulged as if pumped full of gas.

Martia walked past the monster and paused by its posterior. Here she lifted up a fold of skin. Beneath it was a pile of a dozen leathery-skinned eggs, held together by a sticky secretion.

"Now I've got it," muttered Lane. "Of course. The egg-laying queen. She specializes in reproduction. That is why the others have no reproductive organs, or else they're so rudimentary I couldn't detect them. The leggers are animals, all right, but in some things they resemble Terrestrial insects.

"Still, that doesn't explain the absence also of a digestive system."

Martia put the eggs in her bucket and started to leave the room. He stopped her and indicated he wanted to look around some more. She shrugged and began to lead him around. Both had to be careful not to step on the dekapeds, which lay everywhere.

They came to an open bin made of the same gray stuff as the walls. Its interior held many shelves, on which lay hundreds of eggs. Strands of the spiderwebby stuff kept the eggs from rolling off.

Nearby was another bin that held water. At its bottom lay more eggs. Above them minnow-sized torpedo shapes flitted about in the water.

Lane's eyes widened at this. The fish were not members of another genus but were the larvae of the leggers. And they could be set in the channel not only to earn their keep by pumping water which came down from the North Pole but to grow until they were ready to metamorphose into the adult stage.

However, Martia showed him another bin which made him partially revise his first theory. This bin was dry, and the eggs were laid on the floor. Martia picked one up, cut its tough skin open with her knife, and emptied its contents into one hand.

Now his eyes did get wide. This creature had a tiny cylindrical body, a suction pad at one end, a round mouth at the other, and two globular organs hanging by the mouth. A young glowworm.

Martia looked at him to see if he comprehended. Lane held out his hands and hunched his shoulders with an I-don't-get-it air. Beckoning, she walked to another bin to show him more eggs.

Some had been ripped from within, and the little fellows whose hard beaks had done it were staggering around weakly on ten legs.

Energetically, Martia went through a series of charades. Watching her, he began to understand.

The embryos that remained in the egg until they fully developed went through three main metamorphoses: the jetfish stage, the glowworm stage, and finally the baby dekaped stage. If the eggs were torn open by the adult nurses in one of the first two stages, the embryo remained fixed in that form, though it did grow larger.

What about the queen? he asked her by pointing to the monstrously egg-swollen body.

For answer, Martia picked up one of the newly-hatched. It kicked its many legs but did not otherwise protest, being, like all its kind, mute. Martia turned it upside down and indicated a slight crease in its posterior. Then she showed him the same spot on one of the sleeping adults. The adult's rear was smooth, innocent of the crease.

Martia made eating gestures. He nodded. The creatures were born with rudimentary sexual organs, but these never developed. In fact, they atrophied completely unless the young were given a special diet, in which case they matured into egg-layers.

But the picture wasn't complete. If you had females, you had to have males. It was doubtful if such highly developed animals were self-fertilizing or reproduced parthenogenetically.

Then he remembered Martia and began doubting. She gave no evidence of reproductive organs. Could her kind be self-reproducing? Or was she a martin, her natural fulfillment diverted by diet?

It didn't seem likely, but he couldn't be sure that such things were not possible in her scheme of Nature.

Lane wanted to satisfy his curiosity. Ignoring her desire to get out of the chamber, he examined each of the five baby dekapeds. All were potential females.

Suddenly Martia, who had been gravely watching him, smiled and took his hand, and led him to the rear of the room. Here, as they approached another structure, he smelled a strong odor which reminded him of clorox.

Closer to the structure, he saw that it was not a bin but a hemispherical cage. Its bars were of the hard gray stuff, and they curved up from the floor to meet at the central point. There was no door. Evidently the cage had been built around the thing in it, and its occupant must remain until he died.

Martia soon showed him why this thing was not allowed freedom. It -- he -- was sleeping, but Martia reached through the bars and struck it on the head with her fist. The thing did not respond until it had been hit five more times.

Then, slowly, it opened its sidewise lids to reveal great staring eyes, bright as fresh arterial blood.

Martia threw one of the eggs at the thing's head. Its beak opened swiftly, the egg disappeared, the beak closed, and there was a noisy gulp.

Food brought it to life. It sprang up on its ten long legs, clacked its beak, and lunged against the bars again and again.

Though in no danger, Martia shrank back before the killer's lust in the scarlet eyes. Lane could understand her reaction. It was a giant, at least two feet higher than the sentinels. Its back was on a level with Martia's head; its beaks could have taken her head in between them.

Lane walked around the cage to get a good look at its posterior. Puzzled, he made another circuit without seeing anything of male-ness about it except its wild fury, like that of a stallion locked in a barn during mating season.

Except for its size, red eyes, and a cloaca, it looked like one of the guards.

He tried to communicate to Martia his puzzlement. By now, she seemed to anticipate his desires. She went through another series of pantomimes, some of which were so energetic and comical that he had to smile.

First, she showed him two eggs on a nearby ledge. These were larger than the others and were speckled with red spots. Supposedly, they held male embryos.

Then she showed him what would happen if the adult male got loose. Making a face which was designed to be ferocious but only amused him, clicking her teeth and clawing with her hands, she imitated the male running amok.

He would kill everybody in sight. Everybody, the whole colony, queen, workers, guards, larvae, eggs, bite off their heads, mangle them, eat them all up, all, all.

And out of the slaughterhouse he would charge into the tube and kill every legger he met, devour the jetfish, drag down the glowworms from the ceiling, rip them apart, eat them, eat the roots of the trees. Kill, kill, kill, eat, eat, eat!

That was all very well, sighed Lane. But how did... ?

Martia indicated that, once a day, the workers rolled, literally rolled the queen across the room to the cage.

There they arranged her so that she presented her posterior some few inches from the bars and the enraged male.

And the male, though he wanted to do nothing but get his beak into her flesh and tear her apart, was not master of himself. Nature took over; his will was betrayed by his nervous system.

Lane nodded to show he understood. In his mind was a picture of the legger that had been butchered. It had had one sac at the internal end of the tongue. Probably the male had two, one to hold excretory matter, the other to hold seminal fluid.

Suddenly Martia froze, her hands held out before her. She had laid the flashlight on the floor so she could act freely; the beam splashed on her paling skin.

"What is it?" said Lane, stepping toward her.

Martia retreated, holding out her hands before her. She looked horrified.

"I'm not going to harm you," he said. However, he stopped so she could see he didn't mean to get any closer to her.

What was bothering her? Nothing was stirring in the chamber itself besides the male, and he was behind her.

Then she was pointing, first at him and then at the raging dekaped. Seeing this unmistakable signal of identification, he comprehended. She had perceived that he, like the thing in the cage, was male, and now she perceived structure and function in him.

What he didn't understand was why that should make her so frightened of him. Repelled, yes. Her body, its seeming lack of sex, had given him a feeling of distaste bordering on nausea. It was only natural that she should react similarly to his body. However, she had seemed to have gotten over her first shock.

Why this unexpected change, this horror of him?

Behind him, the beak of the male clicked as it lunged against the bars.

The click echoed in his mind.

Of course, the monsters lust to kill!

Until she had met him, she had known only one male creature. That was the caged thing. Now, suddenly, she had equated him with the monster. A male was a killer.

Desperately, because he was afraid that she was about to run in panic out of the room, he made signs that he was not like this monster; he shook his head no, no, no. He wasn't, he wasn't, he wasn't!

Martia, watching him intently, began to relax. Her skin re-gained its pinkish hue. Her eyes became their normal size. She even managed a strained smile.

To get her mind off the subject, he indicated that he would like to know why the queen and her consort had digestive systems, though the workers did not. For answer, she reached up into the downhanging mouth of the worm suspended from the ceiling.

Her hand, withdrawn, was covered with secretion. After smelling her fist, she gave it to him to sniff also. He took it, ignoring her slight and probably involuntary flinching when she felt his touch.

The stuff had an odor such as you would expect from pre-digested food.

Martia then went to another worm. The two light organs of this one were not colored red, like the others, but had a greenish tint. Martia tickled its tongue with her finger and held out her cupped hands. Liquid trickled into the cup.

Lane smelled the stuff. No odor. When he drank the liquid, he discovered it to be a thick sugar water.

Martia pantomimed that the glowworms acted as the digestive systems for the workers. They also stored food away for them. The workers derived part of their energy from the glucose excreted by the roots of the trees.

The proteins and vegetable matter in their diet originated from the eggs and from the leaves of the umbrella plant. Strips of the tough membranous leaf were brought into the tubes by harvesting parties which ventured forth in the daytime.

The worms partially digested the eggs, dead leggers, and leaves and gave it back in the form of a soup. The soup, like the glucose, was swallowed by the workers and passed through the walls of their throats or into the long straight sac which connected the throat to the larger blood vessels. The waste products were excreted through the skin or emptied through the canal in the tongue.

Lane nodded and then walked out of the room. Seemingly relieved, Martia followed him. When they had crawled back into her quarters, she put the eggs in a refrigerator and poured two glasses of wine. She dipped her finger in both, then touched the finger to her lips and to his.

Lightly, he touched the tip with his tongue. This, he gathered, was one more ritual, perhaps a bedtime one, which affirmed that they were at one and at peace. It might be that it had an even deeper meaning, but if so, it escaped him.

Martia checked on the safety and comfort of the worm in the bowl. By now it had eaten all its food. She removed the worm, washed it, washed the bowl, half filled it with warm sugar water, placed it on the table by the bed, and put the creature back in. Then she lay down on the bed and closed her eyes. She did not cover herself and apparently did not expect him to expect a cover.

Lane, tired though he was, could not rest. Like a tiger in its cage, he paced back and forth. He could not keep out of his mind the enigma of Martia nor the problem of getting back to base and eventually to the orbital ship. Earth must know what had happened.

After half an hour of this, Martia sat up. She looked steadily at him as if trying to discover the cause of his sleeplessness. Then, apparently sensing what was wrong, she rose and opened a cabinet hanging down from the wall. Inside were a number of books.

Lane said, "Ah, maybe I'll get some information now!" and he leafed through them all. Wild with eagerness, he chose three and piled them on the bed before sitting down to peruse them.

Naturally he could not read the texts, but the three had many illustrations and photographs. The first volume seemed to be a child's world history.

Lane looked at the first few pictures. Then he said, hoarsely, "My God, you're no more Martian than I am!"

Martia, startled by the wonder and urgency in his voice, came over to his bed and sat down by him. She watched while he turned the pages over until he reached a certain photo. Unexpectedly, she buried her face in her hands, and her body shook with deep sobs.

Lane was surprised. He wasn't sure why she was in such grief. The photo was an aerial view of a city on her home planet -- or some planet on which her people lived. Perhaps it was the city in which she had -- somehow -- been born.

It wasn't long, however, before her sorrow began to stir a response in him. Without any warning he, too, was weeping.

Now he knew. It was loneliness, appalling loneliness, of the kind he had known when he had received no more word from the men in the tanks and he had believed himself the only human being on the face of this world.

After a while, the tears dried. He felt better and wished she would also be relieved. Apparently she perceived his sympathy, for she smiled at him through her tears. And in an irresistible gust of rapport and affection she kissed his hand and then stuck two of his fingers in her mouth.

This, he thought, must be her way of expressing friendship.

Or perhaps it was gratitude for his presence. Or just sheer joy. In any event, he thought, her society must have a high oral orientation.

"Poor Martia," he murmured. "It must be a terrible thing to have to turn to one as alien and weird as I must seem. Especially to one who, a little while ago, you weren't sure wasn't going to eat you up."

He removed his fingers but, seeing her rejected look, he impulsively took hers in his mouth.

Strangely, this caused another burst of weeping. However, he quickly saw that it was happy weeping. After it was over, she laughed softly, as if pleased.

Lane took a towel and wiped her eyes and held it over her nose while she blew.

Now, strengthened, she was able to point out certain illustrations and by signs give him clues to what they meant.

This child's book started with an account of the dawn of life on her planet. The planet revolved around a star that, according to a simplified map, was in the center of the Galaxy.

Life had begun there much as it had on Earth. It had developed in its early stages on somewhat the same lines. But there were some rather disturbing pictures of primitive fish life. Lane wasn't sure of his interpretation, however, for these took much for granted.

They did show plainly that evolution there had picked out biological mechanisms with which to advance different from those on Earth.

Fascinated, he traced the passage from fish to amphibian to reptile to warm-blooded but non-mammalian creature to an upright ground-dwelling apelike creature to beings like Martia.

Then the pictures depicted various aspects of this being's prehistoric life. Later, the invention of agriculture, working of metals, and so on.

The history of civilization was a series of pictures whose meaning he could seldom grasp. One thing was unlike Earths history. There was a relative absence of warfare. The Rameseses, Genghis Khans, Attilas, Caesars, Hitlers, seemed to be missing.

But there was more, much more. Technology advanced much as it had on Earth, despite a lack of stimulation from war. Perhaps, he thought, it had started sooner than on his planet. He got the impression that Martias people had evolved to their present state much earlier than Homosapiens .

Whether that was true or not, they now surpassed man. They could travel almost as fast as light, perhaps faster, and had mastered interstellar travel.

It was then that Martia pointed to a page which bore several photographs of Earth, obviously taken at various distances by a spaceship.

Behind them an artist had drawn a shadowy figure, half-ape, half-dragon.

"Earth means this to you?" Lane said. "Danger? Do not touch?"

He looked for other photos of Earth. There were many pages dealing with other planets but only one of his home. That was enough.

"Why are you keeping us under distant surveillance?" said Lane. "You're so far ahead of us that, technologically speaking, we're Australian aborigines. What're you afraid of?"

Martia stood up, facing him. Suddenly, viciously, she snarled and clicked her teeth and hooked her hands into claws.

He felt a chill. This was the same pantomime she had used when demonstrating the mindless kill-craziness of the caged male legger.

He bowed his head. "I can't really blame you. You're absolutely correct. If you contacted us, we'd steal your secrets. And then, look out! We'd infest all of space!"

He paused, bit his lip, and said, "Yet we're showing some signs of progress. There's not been a war or a revolution for fifteen years; the UN has been settling problems that would once have resulted in a world war; Russia and the U.S. are still armed but are not nearly as close to conflict as they were when I was born. Perhaps... ?

"Do you know, I bet you've never seen an Earthman in the flesh before. Perhaps you've never seen a picture of one, or if you did, they were clothed. There are no photos of Earth people in these books. Maybe you knew we were male and female, but that didn't mean much until you saw me taking a shower.

And the suddenly revealed parallel between the male dekaped and myself horrified you. And you realized that this was the only thing in the world that you had for companionship. Almost as if I'd been shipwrecked on an island and found the other inhabitant was a tiger.

"But that doesn't explain what you are doing here, alone, living in these tubes among the indigenous Martians. Oh, how I wish I could talk to you!

"With thee conversing," he said, remembering those lines he had read the last night in the base.

She smiled at him, and he said, "Well, at least you're getting over your scare. I'm not such a bad fellow, after all, heh?"

She smiled again and went to a cabinet and from it took paper and pen. With them, she made one simple sketch after another. Watching her agile pen, he began to see what had happened.

Her people had had a base for a long time -- a long long time -- on the side of the Moon the Terrestrials could not see. But when rockets from Earth had first penetrated into space, her people had obliterated all evidences of the base. A new one had been set up on Mars.

Then, as it became apparent that a Terrestrial expedition would be sent to Mars, that base had been destroyed and another one set up on Ganymede.

However, five scientists had remained behind in these simple quarters to complete their studies of the dekapeds.

Though Martia's people had studied these creatures for some time, they still had not found out how their bodies could endure the differences between tube pressure and that in the open air.

The four believed that they were breathing hot on the neck of this secret and had gotten permission to stay until just before the Earthmen landed.

Martia actually was a native, in the sense that she had been born and raised here. She had been seven years here, she indicated, showing a sketch of Mars in its orbit around the sun and then holding up seven fingers.

That made her about fourteen Earth years old, Lane estimated. Perhaps these people reached maturity a little faster than his. That is, if she were mature. It was difficult to tell.

Horror twisted her face and widened her eyes as she showed him what had happened the night before they were to leave for Ganymede.

The sleeping party had been attacked by an uncaged male legger.

It was rare that a male got loose. But he occasionally managed to escape. When he did, he destroyed the entire colony, all life in the tube wherever he went. He even ate the roots of the trees so that they died, and oxygen ceased to flow into that section of the tunnel.

There was only one way a forewarned colony could fight a rogue male -- a dangerous method. That was to release their own male. They selected the few who would stay behind and sacrifice their lives to dissolve the bars with an acid secretion from their bodies while the others fled.

The queen, unable to move, also died. But enough of her eggs were taken to produce another queen and another consort elsewhere.

Meanwhile, it was hoped that the males would kill each other or that the victor would be so crippled that he could be finished off by the soldiers.

Lane nodded. The only natural enemy of the dekapeds was an escaped male. Left unchecked, they would soon crowd the tubes and exhaust food and air. Unkind as it seemed, the escape of a male now and then was the only thing that saved the Martians from starvation and perhaps extinction.

However that might be, the rogue had been no blessing in disguise for Martia's people. Three had been killed in their sleep before the other two awoke. One had thrown herself at the beast and shouted to Martia to escape.

Almost insane with fear, Martia had nevertheless not allowed panic to send her running. Instead, she had dived for a cabinet to get a weapon.

-- A weapon, thought Lane. I'll have to find out about that.

Martia acted out what had happened. She had gotten the cabinet door open and reached in for the weapon when she felt the beak of the rogue fastening on her leg. Despite the shock, for the beak cut deeply into the blood vessels and muscles, she managed to press the end of the weapon against the males body.

The weapon did its work, for the male dropped on the floor. Unfortunately, the beaks did not relax but held their terrible grip on her thigh, just above the knee.

Here Lane tried to interrupt so he could get a description of what the weapon looked like and of the principle of its operation. Martia, however, ignored his request. Seemingly, she did not understand his question, but he was sure that she did not care to reply.

He was not entirely trusted, which was understandable. How could he blame her? She would be a fool to be at ease with such an unknown quantity as himself.

That is, if he were unknown. After all, though she did not know him well personally, she knew the kind of people from whom he came and what could be expected from them.

It was surprising that she had not left him to die in the garden, and it was amazing that she had shared that communion of bread and wine with him.

Perhaps, he thought, it is because she was so lonely and any company was better than nothing. Or it might be that he acted on a higher ethical plane than most Earthmen and she could not endure the idea of leaving a fellow sentient being to die, even if she thought him a bloodthirsty savage.

Or she might have other plans for him, such as taking him prisoner.

Martia continued her story. She had fainted and some time later had awakened. The male was beginning to stir, so she had killed him this time.

One more item of information, thought Lane. The weapon is capable of inflicting degrees of damage.

Then, though she kept passing out, she had dragged herself to the medicine chest and treated herself. Within two days she was up and hobbling around, and the scars were beginning to fade.

They must be far ahead of us in everything, he thought. According to her, some of her muscles had been cut. Yet they grew together in a day,

Martia indicated that the repair of her body had required an enormous amount of food during the healing. Most of her time had been spent in eating and sleeping. Reconstruction, even if it took place at a normal accelerated rate, still required the same amount of energy.

By then the bodies of the male and of her companions were stinking with decay. She had to force herself to cut them up and dispose of them in the garbage burner.

Tears welled in her eyes as she recounted this, and she sobbed.

Lane wanted to ask her why she had not buried them, but he reconsidered. Though it might not be the custom among her kind to bury the dead, it was more probable that she wanted to destroy all evidence of their existence before Earthmen came to Mars.

Using signs, he asked her how the male had gotten into the room despite the gate across the tunnel. She indicated that the gate was ordinarily closed only when the dekapeds were awake or when her companions and she were sleeping.

But it had been the turn of one of their number to collect eggs in the queen's chamber. As she reconstructed it, the rogue had appeared at that time and killed the scientist there.

Then, after ravening among the still-sleeping colony, it had gone down the tube and there had seen the light shining from the open tunnel. The rest of the story he knew.

Why, he pantomimed, why didn't the escaped male sleep when all his fellows did? The one in the cage evidently slept at the same time as his companions. And the queen's guards also slept in the belief they were safe from attack.

Not so, replied Martia. A male who had gotten out of a cage knew no law but fatigue. When he had exhausted himself in his eating and killing, he lay down to sleep. But it did not matter if it was the regular time for it or not. When he was rested, he raged through the tubes and did not stop until he was again too tired to move.

So then, thought Lane, that explains the area of dead umbrella plants on top of the tube by the garden. Another colony moved into the devastated area, built the garden on the outside, and planted the young umbrellas.

He wondered why neither he nor the others of his group had seen the dekapeds outside during their six days on Mars.

There must be at least one pressure chamber and outlet for each colony, and there should be at least fifteen colonies in the tubes between this point and that near his base. Perhaps the answer was that the leaf-croppers only ventured out occasionally.

Now that he remembered it, neither he nor anyone else had noticed any holes on the leaves. That meant that the trees must have been cropped some time ago and were now ready for another harvesting.

If the expedition had only waited several days before sending out men in tracs, it might have seen the dekapeds and investigated. And the story would have been different.

There were other questions he had for her. What about the vessel that was to take them to Ganymede? Was there one hidden on the outside, or was one to be sent to pick them up? If one was to be sent, how would the Ganymedan base be contacted? Radio? Or some -- to him -- inconceivable method?

The blue globes! he thought. Could they be means of transmitting messages?

He did not know or think further about them because fatigue overwhelmed him, and he fell asleep. His last memory was that of Martia leaning over him and smiling at him.

When he awoke reluctantly, his muscles ached, and his mouth was as dry as the Martian desert. He rose in time to see Martia drop out of the tunnel, a bucket of eggs in her hand. Seeing this, he groaned. That meant she had gone into the nursery again, and that he had slept the clock around.

He stumbled up and into the shower cubicle. Coming out much refreshed, he found breakfast hot on the table. Martia conducted the communion rite, and then they ate. He missed his coffee.

The hot soup was good but did not make a satisfactory substitute. There was a bowl of mixed cereal and fruit, both of which came out of a can. It must have had a high energy content, for it made him wide awake.

Afterward, he did some setting-up exercises while she did the dishes. Though he kept his body busy, he was thinking of things unconnected with what he was doing.

What was to be his next move?

His duty demanded that he return to the base and report. What news he would send to the orbital ship! The story would flash from the ship back to Earth. The whole planet would be in an uproar.

There was one objection to his plan to take Martia back with him.

She would not want to go.

Halfway in a deep knee bend, he stopped. What a fool he was! He had been too tired and confused to see it. But if she had revealed that the base of her people was on Ganymede, she did not expect him to take the information back to his transmitter.

It would be foolish on her part to tell him unless she were absolutely certain that he would be able to communicate with no one.

That must mean that a vessel was on its way and would arrive soon. And it would not only take her but him. If he was to be killed, he would be dead now.

Lane had not been chosen to be a member of the first Mars expedition because he lacked decision. Five minutes later, he had made up his mind. His duty was clear. Therefore, he would carry it out, even if it violated his personal feelings toward Martia and caused her injury.

First, he'd bind her. Then he would pack up their two pressure suits, the books, and any tools small enough to carry so they might later be examined on Earth.

He would make her march ahead of him through the tube until they came to the point opposite his base. There they would don their suits and go to the dome.

And as soon as possible the two would rise on the rocket to the orbital ship. This step was the most hazardous, for it was extremely difficult for one man to pilot the rocket. Theoretically, it could be done. It had to be done.

Lane tightened his jaw and forced his muscles to quit quivering. The thought of violating Martia's hospitality upset him. Still, she had treated him so well for a purpose not altogether altruistic. For all he knew, she was plotting against him.

There was a rope in one of the cabinets, the same flexible rope with which she had pulled him from the mire. He opened the door of the cabinet and removed it. Martia stood in the middle of the room and watched him while she stroked the head of the blue-eyed worm coiled about her shoulders.

He hoped she would stay there until he got close. Obviously, she carried no weapon on her nor indeed anything except the pet. Since she had removed her suit, she had worn nothing.

Seeing him approaching her, she spoke to him in an alarmed tone. It didn't take much sensitivity to know that she was asking him what he intended to do with the rope. He tried to smile reassuringly at her and failed. This was making him sick.

A moment later, he was violently sick. Martia had spoken loudly one word, and it was as if it had struck him in the pit of his stomach. Nausea gripped him, his mouth began salivating, and it was only by dropping the rope and running into the shower that he avoided making a mess on the floor.

Ten minutes later, he felt thoroughly cleaned out. But when he tried to walk to the bed, his legs threatened to give way. Martia had to support him.

Inwardly, he cursed. To have a sudden reaction to the strange food at such a crucial moment! Luck was not on his side.

That is, if it was chance. There had been something so strange and forceful about the manner in which she pronounced that word. Was it possible that she had set up in him -- hypnotically or otherwise -- a reflex to that word? It would, under the conditions, be a weapon more powerful than a gun.

He wasn't sure, but it did seem strange that his body had accepted the alien food until that moment. Hypnotism did not really seem to be the answer. How could it be so easily used on him since he did not know more than twenty words of her language?

Language? Words? They weren't necessary. If she had given him a hypnotic drug in his food, and then had awakened him during his sleep, she could have dramatized how he was to react if she wanted him to do so. She could have given him the key word, then have allowed him to go to sleep again.

He knew enough hypnotism to know that that was possible. Whether his suspicions were true or not, it was a fact that he had laid flat on his back. However, the day was not wasted.

He learned twenty more words, and she drew many more sketches for him. He found out that when he had jumped into the mire of the garden he had literally fallen into the soup.

The substance in which the young umbrella trees had been planted was a zoogloea, a glutinous mass of one-celled vegetables and somewhat larger anaerobic animal life that fed on the vegetables.

The heat from the jam-packed water-swollen bodies kept the garden soil warm and prevented the tender plants from freezing even during the forty degrees below zero Fahrenheit of the midsummer nights.

After the trees were transplanted into the roof of the tube to replace the dead adults, the zoogloea would be taken piecemeal back to the tube and dumped into the channel. Here the jetfish would strain out part and eat part as they pumped water from the polar end of the tube to the equatorial end.

Toward the end of the day, he tried some of the zoogloea soup and managed to keep it down. A little later, he ate some cereal.

Martia insisted on spooning the food for him. There was something so feminine and tender about her solicitude that he could not protest.

"Martia," he said, "I may be wrong. There can be good will and rapport between our two kinds. Look at us. Why, if you were a real woman, I'd be in love with you.

"Of course, you may have made me sick in the first place. But if you did, it was a matter of expediency, not malice. And now you are taking care of me, your enemy. Love thy enemy. Not because you have been told you should but because you do."

She, of course, did not understand him. However, she replied in her own tongue, and it seemed to him that her voice had the same sense of sympatico.

As he fell asleep, he was thinking that perhaps Martia and he would be the two ambassadors to bring their people together in peace. After all, both of them were highly civilized, essentially pacifistic, and devoutly religious. There was such a thing as the brotherhood, not only of man, but of all sentient beings throughout the cosmos, and...

Pressure on his bladder woke him up. He opened his eyes. The ceiling and walls expanded and contracted. His wristwatch was distorted. Only by extreme effort could he focus his eyes enough to straighten the arms on his watch. The piece, designed to measure the slightly longer Martian day, indicated midnight.

Groggily, he rose. He felt sure that he must have been drugged and that he would still be sleeping if the bladder pain hadn't been so sharp. If only he could take something to counteract the drug, he could carry out his plans now. But first he had to get to the toilet.

To do so, he had to pass close to Martia's bed. She did not move but lay on her back, her arms flung out and hanging over the sides of the bed, her mouth open wide.

He looked away, for it seemed indecent to watch when she was in such a position.

But something caught his eye -- a movement, a flash of light like a gleaming jewel in her mouth.

He bent over her, looked, and recoiled in horror.

A head rose from between her teeth.

He raised his hand to snatch at the thing but froze in the posture as he recognized the tiny pouting round mouth and little blue eyes. It was the worm.

At first, he thought Martia was dead. The thing was not coiled in her mouth. Its body disappeared into her throat.

Then he saw her chest was rising easily and that she seemed to be in no difficulty.

Forcing himself to come close to the worm, though his stomach muscles writhed and his neck muscles quivered, he put his hand close to its lips.

Warm air touched his fingers, and he heard a faint whistling.

Martia was breathing through it!

Hoarsely, he said, "God!" and he shook her shoulder. He did not want to touch the worm because he was afraid that it might do something to injure her. In that moment of shock he had forgotten that he had an advantage over her, which he should use.

Martia's lids opened; her large gray-blue eyes stared blankly.

"Take it easy," he said soothingly.

She shuddered. Her lids closed, her neck arched back, and her face contorted.

He could not tell if the grimace was caused by pain or something else.

"What is this -- this monster?" he said. "Symbiote? Parasite?"

He thought of vampires, of worms creeping into one's sleeping body and there sucking blood.

Suddenly, she sat up and held out her arms to him. He seized her hands, saying, "What is it?"

Martia pulled him toward her, at the same time lifting her face to his.

Out of her open mouth shot the worm, its head pointed toward his face, its little lips formed into an O.

It was reflex, the reflex of fear that made Lane drop her hands and spring back. He had not wanted to do that, but he could not help himself.

Abruptly, Martia came wide awake. The worm flopped its full length from her mouth and fell into a heap between her legs. There it thrashed for a moment before coiling itself like a snake, its head resting on Martia's thigh, its eyes turned upward to Lane.

There was no doubt about it. Martia looked disappointed, frustrated.

Lane's knees, already weak, gave way. However, he managed to continue to his destination. When he came out, he walked as far as Martia's bed, where he had to sit down. His heart was thudding against his ribs, and he was panting hard.

He sat behind her, for he did not want to be where the worm could touch him.

Martia made motions for him to go back to his bed and they would all sleep. Evidently, he thought, she found nothing alarming in the incident.

But he knew he could not rest until he had some kind of explanation. He handed her paper and pen from the bedside table and then gestured fiercely. Martia shrugged and began sketching while Lane watched over her shoulder. By the time she had used up five sheets of paper, she had communicated her message.

His eyes were wide, and he was even paler.

So -- Martia was a female. Female at least in the sense that she carried eggs -- and, at times, young -- within her.

And there was the so-called worm. So called? What could he call it? It could not be designated under one category. It was many things in one. It was a larva. It was a phallus. It was also her offspring, of her flesh and blood.

But not of her genes. It was not descended from her.

She had given birth to it, yet she was not its mother. She was neither one of its mothers.

The dizziness and confusion he felt was not caused altogether by his sickness. Things were coming too fast. He was thinking furiously, trying to get this new information clear, but his thoughts kept going back and forth, getting nowhere.

"There's no reason to get upset," he told himself. "After all, the splitting of animals into two sexes is only one of the ways of reproduction tried on Earth. On Martia's planet Nature -- God -- has fashioned another method for the higher animals. And only He knows how many other designs for reproduction He has fashioned on how many other worlds."

Nevertheless, he was upset.

This worm, no, this larva, this embryo outside its egg and its secondary mother... well, call it, once and for all, larva, because it did metamorphose later.

This particular larva was doomed to stay in its present form until it died of old age.

Unless Martia found another adult of the Eeltau.

And unless she and this other adult felt affection for each other.

Then, according to the sketch she'd drawn, Martia and her friend, or lover, would lie down or sit together. They would, as lovers do on Earth, speak to each other in endearing, flattering, and exciting terms.

They would caress and kiss much as Terrestrial man and woman do, though on Earth it was not considered complimentary to call one's lover Big Mouth.

Then, unlike the Terran custom, a third would enter the union to form a highly desired and indeed indispensable and eternal triangle.

The larva, blindly, brainlessly obeying its instincts, aroused by mutual fondling by the two, would descend tail first into the throat of one of the two Eeltau. Inside the body of the lover a fleshy valve would open to admit the slim body of the larva. Its open tip would touch the ovary of the host. The larva, like an electric eel, would release a tiny current.

The hostess would go into an ecstasy, its nerves stimulate electrochemically. The ovary would release an egg no larger than a pencil dot. It would disappear into the open tip of the larva's tail, there to begin a journey up a canal toward the center of its body, urged on by the contraction of muscle and whipping of cilia.

Then the larva slid out of the first hostess's mouth and went tail first into the other, there to repeat the process. Sometimes the larva garnered eggs, sometimes not, depending upon whether the ovary had a fully developed one to release.

When the process was successful, the two eggs moved toward each other but did not quite meet.

Not yet.

There must be other eggs collected in the dark incubator of the larva, collected by pairs, though not necessarily from the same couple of donors.

These would number anywhere from twenty to forty pairs.

Then, one day, the mysterious chemistry of the cells would tell the larva's body that it had gathered enough eggs.

A hormone was released, the metamorphosis begun. The larva swelled enormously, and the mother, seeing this, placed it tenderly in a warm place and fed it plenty of predigested food and sugar water.

Before the eyes of its mother, the larva then grew shorter and wider. Its tail contracted; its cartilaginous vertebrae, widely separated in its larval stage, shifted closer to each other and hardened, a skeleton formed, ribs, shoulders.

Legs and arms budded and grew and took humanoid shape. Six months passed, and there lay in its crib something resembling a baby of Homosapiens .

From then until its fourteenth year, the Eeltau grew and developed much as its Terran counterpart.

Adulthood, however, initiated more strange changes. Hormone released hormone until the first pair of gametes, dormant these fourteen years, moved together.

The two fused, the chromatin of one uniting with the chromatin of the other. Out of the two -- a single creature, wormlike, four inches long, was released into the stomach of its hostess.

Then, nausea. Vomiting. And so, comparatively painlessly, the bringing forth of a genetically new being.

It was this worm that would be both fetus and phallus and would give ecstasy and draw into its own body the eggs of loving adults and would metamorphose and become infant, child, and adult.

And so on and so on.

He rose and shakily walked to his own bed. There he sat down, his head bowed, while he muttered to himself.

"Let's see now. Martia gave birth to, brought forth, or up, this larva. But the larva actually doesn't have any of Martia's genes. Martia was just the hostess for it.

"However, if Martia has a lover, she will, by means of this worm, pass on her heritable qualities. This worm will become an adult and bring forth, or up, Martia's child."

He raised his hands in despair.

"How do the Eeltau reckon ancestry? How keep track of their relatives? Or do they care? Wouldn't it be easier to consider your foster mother, your hostess, your real mother? As, in the sense of having borne you, she is?

"And what kind of sexual code do these people have? It can't, I would think, be much like ours. Nor is there any reason why it should be.

"But who is responsible for raising the larva and child? Its pseudo-mother? Or does the lover share in the duties? And what about property and inheritance laws? And, and..."

Helplessly, he looked at Martia.

Fondly stroking the head of the larva, she returned his stare.

Lane shook his head.

"I was wrong. Eeltau and Terran couldn't meet on a friendly basis. My people would react to yours as to disgusting vermin. Their deepest prejudices would be aroused, their strongest taboos would be violated. They could not learn to live with you or consider you even faintly human.

"And as far as that goes, could you live with us? Wasn't the sight of me naked a shock? Is that reaction a part of why you don't make contact with us?"

Martia put the larva down and stood up and walked over to him and kissed the tips of his fingers. Lane, though he had to fight against visibly flinching, took her fingers and kissed them.

Softly, he said to her, "Yet... individuals could learn to respect each other, to have affection for each other. And masses are made of individuals."

He lay back on the bed. The grogginess, pushed aside for a while by excitement, was coming back. He couldn't fight off sleep much longer.

"Fine noble talk," he murmured. "But it means nothing.

Eeltau don't think they should deal with us. And we are, unknowingly, pushing out toward them. What will happen when we are ready to make the interstellar jump? War? Or will they be afraid to let us advance even to that point and destroy us before then? After all, one cobalt bomb..."

He looked again at Martia, at the not-quite-human yet beautiful face, the smooth skin of the chest, abdomen, and loins, innocent of nipple, navel, or labia.

From far off she had come, from a possibly terrifying place across terrifying distances. About her, however, there was little that was terrifying and much that was warm, generous, companionable, attractive.

As if they had waited for some key to turn, and the key had been turned, the lines he had read before falling asleep the last night in the base came again to him.

It is the voice of my beloved that knocketh, saying,

Open to me, my sister, my love, my dove, my undefiled

We have a little sister,

And she hath no breasts:

What shall we do for our sister

In the day when she shall be spoken for?

With thee conversing, I forget all time,

All seasons, and their change, all please alike.

"With thee conversing," he said aloud. He turned over so his back was to her, and he pounded his fist against the bed.

"Oh dear God, why couldn't it be so?"

A long time he lay there, his face pressed into the mattress. Something had happened; the overpowering fatigue was gone; his body had drawn strength from some reservoir. Realizing this, he sat up and beckoned to Martia, smiling at the same time.

She rose slowly and started to walk to him, but he signaled that she should bring the larva with her. At first, she looked puzzled. Then her expression cleared, to be replaced by understanding. Smiling delightedly, she walked to him, and though he knew it must be a trick of his imagination, it seemed to him that she swayed her hips as a woman would.

She halted in front of him and then stooped to kiss him full on the lips. Her eyes were closed.

He hesitated for a fraction of a second. She -- no, it, he told himself -- looked so trusting, so loving, so womanly, that he could not do it.

"For Earth!" he said fiercely and brought the edge of his palm hard against the side of her neck.

She crumpled forward against him, her face sliding into his chest. Lane caught her under the armpits and laid her facedown on the bed. The larva, which had fallen from her hand onto the floor, was writhing about as if hurt.

Lane picked it up by its tail and, in a frenzy that owed its violence to the fear he might not be able to do it, snapped it like a whip. There was a crack as the head smashed into the floor and blood spurted from its eyes and mouth. Lane placed his heel on the head and stepped down until there was a flat mess beneath his foot.

Then, quickly, before she could come to her senses and speak any words that would render him sick and weak, he ran to a cabinet. Snatching a narrow towel out of it, he ran back and gagged her. After that he tied her hands behind her back with the rope.

"Now, you bitch!" he panted. "We'll see who comes out ahead! You would do that with me, would you! You deserve this; your monster deserves to die!"

Furiously he began packing. In fifteen mintues he had the suits, helmets, tanks, and food rolled into two bundles. He searched for the weapon she had talked about and found something that might conceivably be it.

It had a butt that fitted to his hand, a dial that might be a rheostat for controlling degrees of intensity of whatever it shot, and a bulb at the end. The bulb, he hoped, expelled the stunning and killing energy. Of course, he might be wrong. It could be fashioned for an entirely different purpose.

Martia had regained consciousness. She sat on the edge of the bed, her shoulders hunched, her head drooping, tears running down her cheeks and into the towel around her mouth. Her wide eyes were focused on the smashed worm by her feet.

Roughly, Lane seized her shoulder and pulled her upright. She gazed wildly at him, and he gave her a little shove. He felt sick within him, knowing that he had killed the larva when he did not have to do so and that he was handling her so violently because he was afraid, not of her, but of himself.

If he had been disgusted because she had fallen into the trap he set for her, he was so because he, too, beneath his disgust, had wanted to commit that act of love. Commit, he thought, was the right word. It contained criminal implications.

Martia whirled around, almost losing her balance because of her tied hands. Her face worked, and sounds burst from the gag.

"Shut up!" he howled, pushing her again. She went sprawling and only saved herself from falling on her face by dropping on her knees. Once more, he pulled her to her feet, noting as he did so that her knees were skinned. The sight of the blood, instead of softening him, enraged him even more.

"Behave yourself, or you'll get worse!" he snarled.

She gave him one more questioning look, threw back her head, and made a strange strangling sound. Immediately, her face took on a bluish tinge. A second later, she fell heavily on the floor.

Alarmed, he turned her over. She was choking to death.

He tore off the gag and reached into her mouth and grabbed the root of her tongue. It slipped away and he seized it again, only to have it slide away as if it were a live animal that defied him.

Then he had pulled her tongue out of her throat; she had swallowed it in an effort to kill herself.

Lane waited. When he was sure she was going to recover, he replaced the gag around her mouth. Just as he was about to tie the knot at the back of her neck, he stopped.

What use would it be to continue this? If allowed to speak, she would say the word that would throw him into retching. If gagged, she would swallow her tongue again.

He could save her only so many times. Eventually, she would succeed in strangling herself.

The one way to solve his problem was the one way he could not take. If her tongue were cut off at the root, she could neither speak nor kill herself. Some men might do it; he could not.

The other way to keep her silent was to kill her.

"I can't do it in cold blood," he said aloud. "So, if you want to die, Martia, then you must do it by committing suicide. That, I can't help. Up you go. I'll get your pack, and we'll leave."

Martia turned blue and sagged to the floor.

"I'll not help you this time!" he shouted, but he found himself frantically trying to undo the knot.

At the same time, he told himself what a fool he was. Of course! The solution was to use her own gun on her. Turn the rheostat to a stunning degree of intensity and knock her out whenever she started to regain consciousness.

Such a course would mean he'd have to carry her and her equipment, too, on the thirty-mile walk down the tube to an exit near his base. But he could do it. He'd rig up some sort of travois. He'd do it! Nothing could stop him. And Earth...

At that moment, hearing an unfamiliar noise, he looked up. There were two Eeltau in pressure suits standing there, and another crawling out of the tunnel. Each had a bulb-tipped handgun in her hand.

Desperately, Lane snatched at the weapon he carried in his belt. With his left hand he twisted the rheostat on the side of the barrel, hoping that this would turn it on full force. Then he raised the bulb toward the group...

He woke flat on his back, clad in his suit, except for the helmet, and strapped to a stretcher. His body was helpless, but he could turn his head. He did so, and saw many Eeltau dismantling the room. The one who had stunned him with her gun before he could fire was standing by him.

She spoke in English that held only a trace of foreign accent. "Settle down, Mr. Lane. You're in for a long ride. You'll be more comfortably situated once we're in our ship."

He opened his mouth to ask her how she knew his name but closed it when he realized she must have read the entries in the log at the base. And it was to be expected that some Eeltau would be trained in Earth languages. For over a century their sentinel spaceships had been tuning in to radio and TV.

It was then that Martia spoke to the captain. Her face was wild and reddened with weeping and marks where she had fallen.

The interpreter said to Lane, "Mahrseeya asks you to tell her why you killed her... baby. She cannot understand why you thought you had to do so."

"I cannot answer," said Lane. His head felt very light, almost as if it were a balloon expanding. And the room began slowly to turn around.

"I will tell her why," answered the interpreter. "I will tell her that it is the nature of the beast."

"That is not so!" cried Lane. "I am no vicious beast. I did what I did because I had to! I could not accept her love and still remain a man! Not the kind of man..."

"Mahrseeya" said the interpreter, "will pray that you be forgiven the murder of her child and that you will someday, under our teaching, be unable to do such a thing.

She herself, though she is stricken with grief for her dead baby, forgives you. She hopes the time will come when you will regard her as a -- sister. She thinks there is some good in you."

Lane clenched his teeth together and bit the end of his tongue until it bled while they put his helmet on. He did not dare to try to talk, for that would have meant he would scream and scream.

He felt as if something had been planted in him and had broken its shell and was growing into something like a worm. It was eating him, and what would happen before it devoured all of him he did not know.