The Rull

BY A. E. VAN VOGT

PROFESSOR JAMIESON saw the other space boat out of the corner of one eye. He was sitting in a hollow about a dozen yards from the edge of the precipice, and some score of feet from the doorway of his own lifeboat. He had been intent on his survey book, annotating a comment beside the voice graph, to the effect that Laertes III was so close to the invisible dividing line between Earth-controlled and Rull-controlled space that its prior discovery by man was in itself a major victory in the Rull-human war.

He wrote: "The fact that ships based on this planet could strike at several of the most densely populated areas of the galaxy, Rull or human, gives it an AA priority on all available military equipment. Preliminary defense units should be set up on Mount Monolith, where I am now, within three we--"

It was at that point that he saw the other boat, above and somewhat to his left, approaching the tableland. He glanced up at it--and froze where he was, torn between two opposing purposes.

His first impulse, to run for the lifeboat, yielded to the realization that the movement would be seen instantly by the electronic reflexes of the other ship. For a moment, then, he had the dim hope that, if he remained quiet enough, neither he nor his ship would be observed.

Even as he sat there, perspiring with indecision, his tensed eyes noted the Rull markings and the rakish design of the other vessel. His vast knowledge of things Rull enabled him to catalogue it instantly as a survey craft.

A survey craft. The Rulls had discovered the Laertes sun.

The terrible potentiality was that, behind this small craft, might be fleets of battleships, whereas he was alone. His own lifeboat had been dropped by the Orion nearly a parsec away, while the big ship was proceeding at antigravity speeds. That was to insure that Rull energy tracers did not record its passage through this area of space.

The Orion was to head for the nearest base, load up with planetary defense equipment, and return. She was due in ten days.

Ten days. Jamieson groaned inwardly, and drew his legs under him and clenched his survey book in the fingers of one hand. But still the possibility his ship, partially hidden under a clump of trees, might escape notice if he remained quiet, held him there in the open. His head tilted up, his eyes glared at the alien, and his brain willed it to turn aside.

~ * ~

Once more, flashingly, while he waited, the implications of the disaster that could be here, struck deep. In all the universe there had never been so dangerous an intelligence as the Rull. At once remorseless and immune to all attempts at establishing communication, Rulls killed human beings on sight. A human-manned warship that ventured into Rull-patrolled space was attacked until it withdraw or was destroyed. Rull ships that entered Earth-controlled space never withdrew once they were attacked. In the beginning, man had been reluctant to engage in a death struggle for the galaxy. But the inexorable enemy had forced him finally to match in every respect the tenacious and murderous policies of the Rull.

The thought ended. The Rull ship was a hundred yards away, and showed no signs of changing its course. In seconds, it would cross the clump of trees, which half-hid the lifeboat.

In a spasm of a movement, Jamieson launched himself from his chair. Like a shot from a gun, with utter abandon, he dived for the open doorway of his machine. As the door clanged behind him, the boat shook as if it had been struck by a giant. Part of the ceiling sagged; the floor staggered towards him, and the air grew hot and suffocating.

Gasping, Jamieson slid into the control chair, and struck at the main emergency switch. The rapid fire blasters huzzaed into automatic firing positions, and let go with a hum and deep-throated ping. The refrigerators whined with power; a cold blast of air blew at his body. The relief was so quick that a second passed before Jamieson realized that the atomic engines had failed to respond. And that the lifeboat, which should already have been sliding into the air, was still lying inert in an exposed position.

Tense, he stared into the visiplates. It took a moment to locate the Rull ship. It was at the lower edge of one plate, tumbling slowly out of sight beyond a clump of trees a quarter of a mile away. As he watched, it disappeared; and then the crash of the landing came clear and unmistakable from the soundboard in front of him.

The relief that came was weighted with an awful reaction. Jamieson sank back into the cushions of the control chair, weak from the narrowness of his escape. The weakness ended abruptly as a thought struck him. There had been a sedateness about the way the enemy ship fell. The crash hadn't killed the Rulls aboard.

He was alone in a damaged lifeboat on an impassable mountain with one or more of the most remorseless creatures ever spawned. For ten days, he must fight in the hope that man would still be able to seize the most valuable planet discovered in a century.

He saw in his visiplate that it was growing darker outside.

~ * ~

Jamieson opened the door, and went out onto the tableland. He was still trembling with reaction, but there was no time to waste.

He walked swiftly to the top of the nearest hillock a hundred feet away, taking the last few feet on his hands and knees. Cautiously, he peered over the rim.

Most of the mountain top was visible. It was a rough oval some eight hundred yards wide at its narrowest, a wilderness of scraggly brush and upjutting rock, dominated here and there by clumps of trees. There was not a movement to be seen, and not a sign of the Rull ship. Over everything lay an atmosphere of desolation, and the utter silence of an uninhabited wasteland.

The twilight was deeper, now that the sun had sunk below the southwest precipice. And the deadly part was that, to the Rulls, with their wider vision and more complete sensory equipment, the darkness would mean nothing. All night long, he would have to be on the defensive against beings whose nervous systems outmatched his in every function except, possibly, intelligence. On that level, and that alone, human beings claimed equality.

The very comparison made him realize how desperate his situation was. He needed an advantage. If he could get to the Rull wreck, and cause them some kind of damage before it got pitch dark, before they recovered from the shock of the crash, that alone might make the difference between life and death for him.

It was a chance he had to take.

Hurriedly, Jamieson backed down the hillock, and, climbing to his feet, started to run along a shallow wash. The ground was rough with stones and projecting edges of rock and the gnarled roots and tangle of hardy growth. Twice, he fell, the first time gashing his right hand, the second time his right foot.

It slowed him mentally and physically. He had never before tried to make speed over the pathless wilderness of the tableland. He saw that in ten minutes he had covered a distance of just under seventy-five yards.

Jamieson stopped. It was one thing to be bold on the chance of making a vital gain. It was quite another to throw away his life on a reckless gamble. The defeat would not be his alone, but man's.

As he stood there, he grew aware of how icy cold it had become. A chilling wind from the east had sprung up. By midnight, the temperature would be zero. For it was autumn on Laertes III. Soon, snow would be stinging down on an ever more barren land, and then winter would settle for eight long months. The original exploratory party had extracted from the flora and the fauna, and the soil and the rocks the cyclic secrets of the planet's existence. And in their two years stay they had mapped the gyrations of every wind, cold and heat source on its uneven surface.

Jamieson began to retreat. There were several defenses to rig up before night fell; and he had better hurry. An hour later, when the moonless darkness lay heavily over the mountain of mountains, Jamieson sat tensely before his visiplates.

It was going to be a long night for a man who dared not sleep.

It was shortly after midnight--Laertes III had a twenty-six hour, sidereal time, day--when Jamieson saw a movement at the remote perimeter of his all-wave vision plate. Finger on blaster control, he waited for the object to come into sharper focus.

It never did. The cold dawn found him weary but still alertly watching for an enemy that was acting as cautiously as he himself.

He began to wonder if he had actually seen anything.

~ * ~

Jamieson took another antisleep pill and made a more definite examination of the atomic motors. It didn't take long to verify his earlier diagnosis. The basic graviton pile had been thoroughly frustrated. Until it could be reactivated on the Orion, the motors were useless.

The conclusive examination braced Jamieson. He was committed irrevocably to the battle of the tableland, with all its intricate possibilities. The idea that had been turning over in his mind during the prolonged night took on new meaning. This was the first time in his knowledge that a Rull and a human being had faced each other on a limited field of action, where neither was a prisoner. The great battles in space were ship against ship and fleet against fleet. Survivors either escaped or were picked up by overwhelming forces. Actually, both humans and Rulls, captured or facing capture, were conditioned to kill themselves. Rulls did it by a mental willing that had never been circumvented. Men had to use mechanical methods, and in some cases that had proved impossible. The result was that Rulls had had occasional opportunities to experiment on living, conscious men.

Unless he was bested, before he could get organized, here was a priceless opportunity to try some tests on Rulls--and without delay. Every moment of daylight must be utilized to the uttermost limit

Jamieson put on his special "defensive" belts, and went outside.

The dawn was brightening minute by minute; and the vistas that revealed themselves with each increment of light power held him, even as he tensed his body for the fight ahead. Why, he thought, in a sharp, excited wonder, all this is happening on the strangest mountain ever known.

Mount Monolith, discovered at the same time as the planet, two years before, had been named in the first words spoken about it. "Look at that monolith down there!" On a level plain that column stood, and reared up precipitously to a height of eight thousand two hundred feet. The most majestic pillar in the known universe, it easily qualified as one of the hundred natural wonders of the galaxy.

Standing there, Jamieson felt, not for the first time, the greatness of man's destiny. Defender and ally of thousands of life-forms, chief enemy of the encroaching Rull menace-- In his eighteen years of military service he had gazed on many alien scenes. He had walked the soil of planets two hundred thousand light-years from Earth. As head of the fleet's science division, he had been absolute commander--under law and regulation-- of ships so powerful that whole groups of inhabited worlds were helpless before their irresistible might--ships that flashed from the eternal night into the blazing brightness of suns red and suns blue, suns yellow and white and orange and violet, suns so wonderful and different that no previous imaginings could match the reality.

Yet, despite the greatness of his rank, here he stood on a mountain on far Laertes, one man compelled by circumstance to pit his cunning against one or more of the supremely intelligent Rull enemy. The information about the discovery of the Laertes planet had been relayed to him through the usual routine channels. Instantly he had seen what the others had missed, that it would be a key base against either galactic hemisphere. Since battleships did not normally carry the type of planetary oryctologist who could make a co-ordinated survey, he had not hesitated to step into the breach.

Even as it was, the first great advantage was already lost.

Jamieson shook himself grimly. It was time to launch his attack--and discover the opposition that could be mustered against him.

That was Step One, and the important point about it was to insure that it wasn't also Step Last.

~ * ~

By the time the Laertes sun peered palely over the horizon that was the northeast cliff's edge, the assault was under way. The automatic defensors, which he had set up the night before, moved slowly from point to point ahead of the mobile blaster.

Jamieson cautiously saw to it that one of the three defensors also brought up his rear. He augmented that basic protection by crawling from one projecting rock after another. The machines he manipulated from a tiny hand control, which was connected to the visiplates that poked out from his headgear just above his eyes. With tensed eyes, he watched the wavering needles that would indicate movement or that the defensor screens were being subjected to energy opposition.

Nothing happened.

As he came within sight of the Rull craft, Jamieson stalled his attack, while he seriously pondered the problem of no resistance. He didn't like it. It was possible that all the Rulls aboard had been killed, but he doubted it mightily. Rulls were almost boneless. Except for half a dozen strategically linked cartilages, they were all muscle.

With bleak eyes, Jamieson studied the wreck through the telescopic eyes of one of the defensors. It lay in a shallow indentation, its nose buried in a wall of gravel. Its lower plates were collapsed versions of the original. His single energy blast the evening before, completely automatic though it had been, had really dealt a smashing blow to the Rull ship.

The over-all effect was of utter lifelessness. If it was a trick, then it was a very skillful one. Fortunately, there were tests he could make, not absolutely final but evidential and indicative.

He made them.

The echoless height of the most unique mountain ever discovered hummed with the fire-sound of the mobile blaster. The noise grew to a roar as the unit's pile warmed to its task, and developed its maximum kilo curie activity.

Under that barrage, the hull of the enemy craft trembled a little and changed color slightly, but that was all. After ten minutes, Jamieson cut the power, and sat baffled and indecisive.

The defensive screens of the Rull ship were full on. Had they gone on automatically after his first shot of the evening before? Or had they been put up deliberately to nullify just such an attack as this?

He couldn't be sure. That was the trouble; he had no positive knowledge. The Rull could be lying inside dead. (Odd, how he was beginning to think in terms of one rather than several, but he had a conviction that two live Rulls would not be cautious in dealing with one human being--of course, they couldn't be absolutely sure there was only one.) It could be wounded and incapable of doing anything against him. It could have spent the night marking up the tableland with elled nerve control lines --he'd have to make sure he never looked directly at the ground --or it could simply be waiting for the arrival of the greater ship that had dropped it onto the planet.

~ * ~

Jamieson refused to consider the last possibility. That way was death, without qualification or hope.

Frowningly, he studied the visible damage he had done the ship. All the hard metals had held together, so far as he could see, but the whole bottom of the ship was dented to a depth that varied from one to four feet. Some radiation must have got in, and the question was, what would it have damaged?

He had examined dozens of captured Rull survey craft, and if this one ran to the pattern, then in the front would be the control center, with a sealed off blaster chamber. In the rear the engine room, two storerooms, one for fuel and equipment, the other for food and--

For food. Jamieson jumped, and then with wide eyes noted how the food section had suffered greater damage than any other part of the ship.

Surely, surely, some radiation must have got into it, poisoning it, ruining it, and instantly putting the Rull, with his swift digestive system, into a deadly position.

Jamieson sighed with the intensity of his hope, and prepared to retreat. As he turned away, quite incidentally, accidentally, he glanced at the rock behind which he had shielded himself from possible direct fire.

Glanced at it, and saw the elled lines in it. Intricate lines, based on a profound and inhuman study of the human nervous system. Jamieson recognized them, and stiffened in horror. He thought in anguish: Where, where am I supposed to fall? Which cliff?

With a desperate will, with all his strength, he fought to retain his senses a moment longer. He strove to see the lines again. He saw, briefly, flashingly, five vertical and above them three lines that pointed east with their wavering ends.

The pressure built up, up, up inside him, but still he fought to keep his thoughts moving. Fought to remember if there were any wide ledges near the top of the east cliff.

There were. He recalled them in a final agony of hope. There, he thought. That one, that one, Let me fall on that one. He strained to hold the ledge image he wanted, and to repeat, repeat the command that might save his life. His last, dreary thought was that here was the answer to his doubts. The Rull was alive.

Blackness came like a curtain of pure essence of night.

~ * ~

From the far galaxy had he come, a cold, remorseless leader of leaders, the yeli, Meeesh, the Iiin of Ria, the high Aaish of the Yeell. And other titles, and other positions, and power. Oh, the power that he had, the power of death, the power of life and the power of the Leard ships.

He came in his great anger to discover what was wrong. A thousand years before the command had been given: Expand into the Second galaxy. Why were they-who-could-not-be-more-perfect so slow in carrying out these instructions? What was the nature of the two-legged creatures whose multitudinous ships, impregnable planetary bases and numerous allies had fought those-who-possessed-Nature's-supreme-nervous-system to an impasse?

"Bring me a live human being!" The command echoed to the ends of Riatic space.

It produced a dull survivor of an Earth cruiser, a sailor of low degree with an I.Q. of ninety-six, and a fear index of two hundred and seven. The creature made vague efforts to kill himself, and squirmed on the laboratory tables, and finally escaped into death when the scientists were still in the beginning of the experiments which he had ordered to be performed before his own eyes.

"Surely, this is not the enemy."

"Sire, we capture so few that are alive. Just as we have conditioned our own loved-ones, so do they seem to be conditioned to kill themselves in case of capture."

'The environment is wrong. We must create a situation where the captured does not know himself to be prisoner. Are there any possibilities?"

"The problem will be investigated."

He had come, as the one who will conduct the experiment, to the sun where a man had been observed seven periods before-- "in a small craft that fell from a point in space, obviously dropped by a warship. And so we have a new base possibility.

"No landings have yet been made, as you instructed; no traces of our presence. It may be assumed that there was an earlier human landing on the third planet. A curious mountain top. Will be an ideal area for our purposes."

A battle group patrolled the space around the sun. But he came down in a small ship; and because he had contempt for his enemy, he flew in over the mountain, fired his disabling blast at the ship on the ground--and then was struck by a surprisingly potent return blast, that sent his machine spinning to a crash.

Almost, in those seconds, death came. But he crawled out of his control chair, shocked but still alive. With thoughtful eyes, he assessed the extent of the disaster that had befallen him.

He had issued commands that he would call when he needed help. But he could not call. The radio was shattered beyond repair. He had a strange, empty sensation when he discovered that his food was poisoned.

Swiftly, he stiffened to the necessities of the situation.

The experiment would go on, with one proviso. When the need for food became imperative, he would kill the man, and so survive until the commanders of the ships grew alarmed, and came down to see what had happened.

Part of the sunless period, he spent exploring the cliff's edge. Then he hovered on the perimeter of the man's defensor energies, studying the lifeboat, and pondering the possible actions the other might take against him.

Finally, with a tireless patience he examined the approaches to his own ship. At key points, he drew the lines that-could-seize-the-minds-of-men. There was satisfaction, shortly after the sun came up, in seeing the enemy "caught" and "compelled." The satisfaction had but one drawback.

He could not take the advantage of the situation that he wanted.

The difficulty was that the man's blaster had been left focused on his main air lock. It was not emitting energy, but the Rull did not doubt that it would fire automatically if the door opened.

What made the situation serious was that, when he tried the emergency exit, it was jammed.

It hadn't been. With the forethought of his kind, he had tested it immediately after the crash. Then it opened.

Now, it didn't. The ship, he decided, must have settled while he was out during the sunless period. Actually, the reason for what had happened didn't matter. What counted was that he was locked in just when he wanted to be outside.

It wasn't as if he had definitely decided to destroy the man immediately. If capturing him meant gaining control of his food supply, then it would be unnecessary to give him death. It was important to be able to make the decision, however, while the man was helpless; and the further possibility that the elled fall might kill him made the yeli grim. He didn't like accidents to disturb his plans.

~ * ~

From the beginning the affair had taken a sinister turn. He had been caught up by forces beyond his control, by elements of space and time which he had always taken into account as being theoretically possible, but he had never considered them as having personal application.

That was for the deeps of space where the Leard ships fought to extend the frontiers of the perfect ones. Out there lived alien creatures that had been spawned by Nature before the ultimate nervous system was achieved. All those aliens must die because they were now unnecessary, and because, existing, they might accidently discover means of upsetting the balance of Yeellian life. In civilized Ria accidents were forbidden.

The Rull drew his mind clear of such weakening thoughts.

He decided against trying to open the emergency door. Instead, he turned his blaster against a crack in the hard floor. The frustrators blew their gases across the area where he had worked, and the suction pumps caught the swirling radioactive stuff and drew it into a special chamber. But the lack of an open door as a safety valve made the work dangerous. Many times he paused while the air was cleansed, and the counter needles shook themselves toward zero, so that he could come out again from the frustrating chamber to which he retreated whenever the heat made his nerves tingle--a more reliable guide than any instrument that had to be watched.

The sun was past the meridian when the metal plate finally lifted clear, and gave him an opening into the gravel and rock underneath. The problem of tunneling out into the open was easy except that it took time and physical effort. Dusty and angry and hungry, the Rull emerged from the hole near the center of the clump of trees beside which his craft had fallen.

His plan to conduct an experiment had lost its attraction. He had obstinate qualities in his nature, but he reasoned that this situation could be reproduced for him on a more civilized level. No need to take risks or to be uncomfortable. Kill the man and use him as food until the ships came down to rescue him.

With hungry gaze, he searched the ragged, uneven east cliff, peering down at the ledges, crawling swiftly along until he had virtually circumvented the tableland. He found nothing he could be sure about. In one or two places the ground looked lacerated as by the passage of a body, but the most intensive examination failed to establish that anyone had actually been there.

Somberly, the Rull glided towards the man's lifeboat. From a safe distance, he examined it. The defense screens were up, but he couldn't be sure they had been put up before the attack of the morning, or had been raised since then, or had come on automatically at his approach.

He couldn't be sure. That was the trouble. Everywhere, on the tableland around him, was a barrenness, a desolation unlike anything else he had ever known. The man could be dead, his smashed body lying at the remote bottom of the mountain. He could be inside the ship badly injured; he had, unfortunately, had time to get back to the safety of his craft. Or he could be waiting inside, alert, aggressive, and conscious of his enemy's uncertainty, determined to take full advantage of that uncertainty.

The Rull set up a watching device, that would apprise him when the door opened. Then he returned to the tunnel that led into his ship, laboriously crawled through it, and settled himself to wait out the emergency.

The hunger in him was an expanding force, hourly taking on a greater urgency. It was time to stop moving around. He would need all his energy for the crisis.

The days passed.

~ * ~

Jamieson stirred in an effluvium of pain. At first it seemed all-enveloping, a mist of anguish that bathed him in sweat from head to toe. Gradually, then, it localized in the region of his lower left leg.

The pulse of the pain made a rhythm in his nerves. The minutes lengthened into an hour, and then he finally thought: Why, I've got a sprained ankle! He had more than that, of course. The pressure that had driven him here clung like a gravitonic plate. How long he lay there, partly conscious, was not clear, but when he finally opened his eyes, the sun was still shining on him, though it was almost directly overhead.

He watched it with the mindlessness of a dreamer as it withdrew slowly past the edge of the overhanging precipice. It was not until the shadow of the cliff suddenly plopped across his face that he started to full consciousness with a sudden memory of deadly danger.

It took a while to shake the remnants of the elled "take" from his brain. And, even as it was fading, he sized up, to some extent, the difficulties of his position. He saw that he had tumbled over the edge of a cliff to a steep slope. The angle of descent of the slope was a sharp fifty-five degrees, and what had saved him was that his body had been caught in the tangled growth near the edge of the greater precipice beyond.

His foot must have twisted in those roots, and sprained.

As he finally realized the nature of his injuries, Jamieson braced up. He was safe. In spite of having suffered an accidental defeat of major proportions, his intense concentration on this slope, his desperate will to make this the place where he must fall, had worked out.

He began to climb. It was easy enough on the slope, steep as it was; the ground was rough, rocky and scraggly with brush. It was when he came to the ten-foot overhanging cliff that his ankle proved what an obstacle it could be.

Four times he slid back, reluctantly; and then, on the fifth try, his fingers, groping desperately over the top of the cliff, caught an unbreakable root. Triumphantly, he dragged himself to the safety of the tableland

Now that the sound of his scraping and struggling was gone, only his heavy breathing broke the silence of the emptiness. His anxious eyes studied the uneven terrain. The tableland spread before him with not a sign of a moving figure anywhere.

To one side, he could see his lifeboat. Jamieson began to crawl toward it, taking care to stay on rock as much as possible. What had happened to the Rull he did not know. And since, for several days, his ankle would keep him inside his ship, he might as well keep his enemy guessing during that time.

~ * ~

Professor Jamieson lay in his bunk, thinking. He could hear the beating of his heart. There were the occasional sounds when he dragged himself out of bed. But that was almost all. The radio, when he turned it on, was dead. No static, not even the fading in and out of a wave. At this colossal distance, even sub-space radio was impossible.

He listened on all the more active Rull wave lengths. But the silence was there, too. Not that they would be broadcasting if they were in the vicinity.

He was cut off here in this tiny ship on an uninhabited planet, with useless motors.

He tried not to think of it like that. "Here," he told himself, "is the opportunity of a lifetime for an experiment."

He warmed to the idea as a moth to flame. Live Rulls were hard to get hold of. About one a year was captured in the unconscious state, and these were regarded as priceless treasures. But here was an even more ideal situation.

We're prisoners, both of us. That was the way he tried to picture it. Prisoners of an environment, and, therefore, in a curious fashion, prisoners of each other. Only each was free of the conditioned need to kill himself.

There were things a man might discover. The great mysteries --as far as men were concerned--that motivated Rull actions. Why did they want to destroy other races totally? Why did they needlessly sacrifice valuable ships in attacking Earth machines that ventured into their sectors of space--when they knew that the intruders would leave in a few weeks anyway? And why did prisoners who could kill themselves at will commit suicide without waiting to find out what fate was intended for them? Some times they were merely wanted as messengers.

Was it possible the Rulls were trying to conceal a terrible weakness in their make-up of which man had not yet found an inkling?

The potentialities of this fight of man against Rull on a lonely mountain exhilarated Jamieson as he lay on his bunk, scheming, turning the problem over in his mind.

There were times during those dog days when he crawled over to the control chair, and peered for an hour at a stretch into the visiplates. He saw the tableland and the vista of distance beyond it. He saw the sky of Laertes III, bluish pink sky, silent and lifeless.

He saw the prison. Caught here, he thought bleakly. Professor Jamieson, whose appearance on an inhabited planet would bring out unwieldy crowds, whose quiet voice in the council chambers of Earth's galactic empire spoke with final authority--that Jamieson was here, alone, lying in a bunk, waiting for a leg to heal, so that he might conduct an experiment with a Rull.

It seemed incredible. But he grew to believe it as the days passed.

On the third day, he was able to move around sufficiently to handle a few heavy objects. He began work immediately on the mental screen. On the fifth day it was finished. Then the story had to be recorded. That was easy. Each sequence had been so carefully worked out in bed that it flowed from his mind onto the visiwire.

He set it up about two hundred yards from the lifeboat, behind a screening of trees. He tossed a can of food a dozen feet to one side of the screen.

The rest of the day dragged. It was the sixth day since the arrival of the Rull, the fifth since he had sprained his ankle.

Came the night

A gliding shadow, undulating under the starlight of Laertes III, the Rull approached the screen the man had set up. How bright it was, shining in the darkness of the tableland, a blob of light in a black universe of uneven ground and dwarf shrubbery.

When he was a hundred feet from the light, he sensed the food --and realized that here was a trap.

For the Rull, six days without food had meant a stupendous loss of energy, visual blackouts on a dozen color levels, a dimness of life-force that fitted with the shadows, not the sun. That inner world of disjointed nervous system was like a run-down battery with a score of organic "instruments" disconnecting one by one as the energy level fell. The yeli recognized dimly, but with a savage anxiety, that only a part of that nervous system would ever be restored to complete usage. And, even for that, speed was essential. A few more steps downward, and then the old, old conditioning of mandatory self-inflicted death would apply even to the high Aaish of the Yeell.

The worm body grew quiet. The visual center behind each eye accepted light on a narrow band from the screen. From beginning to end, he watched the story as it unfolded, and then watched it again, craving repetition with all the ardor of a primitive.

The picture began in deep space with the man's lifeboat being dropped from a launching lock of a battleship. It showed the battleship going on to a military base, and there taking on supplies and acquiring a vast fleet of reinforcements, and then starting on the return journey. The scene switched to the lifeboat dropping down on Laertes III, showed everything that had subsequently happened, suggested the situation was dangerous to them both--and pointed out the only safe solution.

The final sequence of each showing of the story was of the Rull approaching the can, to the left of the screen, and opening it. The method was shown in detail, as was the visualization of the Rull busily eating the food inside.

Each time that sequence drew near, a tenseness came over the Rull, a will to make the story real. But it was not until the seventh showing had run its course that he glided forward, closing the last gap between himself and the can. It was a trap, he knew, perhaps even death--it didn't matter. To live, he had to take the chance. Only by this means, by risking what was in the can, could he hope to remain alive for the necessary time.

How long it would take for the commanders cruising up there in the black of space in their myriad ships--how long it would be before they would decide to supersede his command, he didn't know. But they would come. Even if they waited until the enemy ships arrived before they dared to act against his strict orders, they would come.

At that point they could come down without fear of suffering from his ire.

Until then he would need all the food he could get.

Gingerly, he extended a sucker, and activated the automatic opener of the can.

~ * ~

It was shortly after four in the morning when Professor Jamie-son awakened to the sound of an alarm ringing softly. It was still pitch dark outside--the Laertes day was twenty-six sidereal hours long; he had set his clocks the first day to co-ordinate-- and at this season dawn was still three hours away.

Jamieson did not get up at once. The alarm had been activated by the opening of the can of food. It continued to ring for a full fifteen minutes, which was just about perfect. The alarm was tuned to the electronic pattern emitted by the can, once it was opened, and so long as any food remained in it. The lapse of time involved fitted with the capacity of one of the Rull's suckers in absorbing three pounds of pork.

For fifteen minutes, accordingly, a member of the Rull race, man's mortal enemy, had been subjected to a pattern of mental vibrations corresponding to its own thoughts. It was a pattern to which the nervous systems of other Rulls had responded in laboratory experiments. Unfortunately, those others had killed themselves on awakening, and so no definite results had been proved. But it had been established by the ecphoriometer that the "unconscious" and not the "conscious" mind was affected.

Jamieson lay in bed, smiling quietly to himself. He turned over finally to go back to sleep, and then he realized how excited he was.

The greatest moment in the history of Rull-human warfare. Surely, he wasn't going to let it pass unremarked. He climbed out of bed, and poured himself a drink.

The attempt of the Rull to attack him through his unconscious mind had emphasized his own possible actions in that direction. Each race had discovered some of the weaknesses of the other.

Rulls used their knowledge to exterminate. Man tried for communication, and hoped for association. Both were ruthless, murderous, pitiless, in their methods. Outsiders sometimes had difficulty distinguishing one from the other.

But the difference in purpose was as great as the difference between black and white, the absence as compared to the presence of light.

There was only one trouble with the immediate situation. Now, that the Rull had food, he might develop a few plans of his own.

Jamieson returned to bed, and lay staring into the darkness. He did not underrate the resources of the Rull, but since he had decided to conduct an experiment, no chance must be considered too great.

He turned over finally, and slept the sleep of a man determined that things were working in his favor.

~ * ~

Morning. Jamieson put on his cold-proof clothes, and went out into the chilly dawn. Again, he savored the silence and the atmosphere of isolated grandeur. A strong wind was blowing from the east, and there was an iciness in it that stung his face. Snow? He wondered.

He forgot that. He had things to do on this morning of mornings. He would do them with his usual caution.

Paced by defensors and the mobile blaster, he headed for the mental screen. It stood in open high ground, where it would be visible from a dozen different hiding places, and so far as he could see it was undamaged. He tested the automatic mechanism, and for good measure ran the picture through one showing.

He had already tossed another can of food in the grass near the screen, and he was turning away when he thought: That's odd. The metal framework looks as if it's been polished.

He studied the phenomena in a de-energizing mirror, and saw that the metal had been varnished with a clear, varnishlike substance. He felt sick as he recognized it.

He decided in agony, If the cue is not to fire at all, I won't do it. I'll fire even if the blaster turns on me.

He scraped some of the "varnish" into a receptacle, and began his retreat to the lifeboat. He was thinking violently:

Where does he get all this stuff? That isn't part of the equipment of a survey craft.

The first deadly suspicion was on him, that what was happening was not just an accident. He was pondering the vast implications of that, narrow-eyed, when, off to one side, he saw the Rull.

For the first time, in his many days on the tableland, he saw the Rull.

What's the cue!

~ * ~

Memory of purpose came to the Rull shortly after he had eaten. It was dim at first, but it grew stronger.

It was not the only sensation of his returning energy.

His visual centers interpreted more light. The starlit tableland grew brighter, not as bright as it could be for him, by a very large percentage but the direction was up instead of down. It would never again be normal. Vision was in the mind, and that part of his mind no longer had the power of interpretation.

He felt unutterably fortunate that it was no worse.

He had been gliding along the edge of the precipice. Now, he paused to peer down. Even with his partial night vision, the view was breathtaking. There was distance below and distance afar. From a spaceship, the height was almost minimum. But gazing down that wall of gravel into those depths was a different experience. It emphasized how completely he had been caught by an accident. And it reminded him of what he had been doing before the hunger.

He turned instantly away from the cliff, and hurried to where the wreckage of his ship had gathered dust for days. Bent and twisted wreckage, half-buried in the hard ground of Laertes III. He glided over the dented plates inside to one in which he had the day before sensed a quiver of antigravity oscillation. Tiny, potent, tremendous minutiae of oscillation, capable of being influenced.

The Rull worked with intensity and purposefulness. The plate was still firmly attached to the frame of the ship. And the first job, the heartbreakingly difficult job was to tear it completely free. The hours passed.

R-r-i-i-i-pp! The hard plate yielded to the slight rearrangement of its nucleonic structure. The shift was infinitesimal, partly because the directing nervous energy of his body was not at norm, and partly because it had better be infinitesimal. There was such a thing as releasing energy enough to blow up a mountain.

Not, he discovered finally, that there was danger in this plate. He found that out the moment he crawled onto it. The sensation of power that aura-ed out of it was so dim that, briefly, he doubted if it would lift from the ground.

But it did. The test run lasted seven feet, and gave him his measurement of the limited force he had available. Enough for an attack only.

He had no doubts in his mind. The experiment was over. His only purpose must be to kill the man, and the question was, how could he insure that the man did not kill him while he was doing it? The varnish!

He applied it painstakingly, dried it with a drier, and then, picking up the plate again, he carried it on his back to the hiding place he wanted. When he had buried it and himself under the dead leaves of a clump of brush, he grew calmer. He recognized that the veneer of his civilization was off. It shocked him, but he did not regret it.

In giving him the food, the two-legged being was obviously doing something to him. Something dangerous. The only answer to the entire problem of the experiment of the tableland was to deal death without delay.

He lay tense, ferocious, beyond the power of any vagrant thoughts, waiting for the man to come.

~ * ~

It looked as desperate a venture as Jamieson had seen in Service. Normally, he would have handled it effortlessly. But he was watching intently--intently--for the paralysis to strike him, the negation that was of the varnish.

And so, it was the unexpected normal quality that nearly ruined him. The Rull flew out of a clump of trees mounted on an antigravity plate. The surprise of that was so great that it almost succeeded. The plates had been drained of all such energies, according to his tests the first morning. Yet here was one alive again and light again with the special antigravity lightness which Rull scientists had brought to the peak of perfection.

The action of movement through space toward him was, of course, based on the motion of the planet as it turned on its axis. The speed of the attack, starting as it did from zero, did not come near the eight hundred mile an hour velocity of the spinning planet, but it was swift enough.

The apparition of metal and six-foot worm charged at him through the air. And even as he drew his weapon and fired at it, he had a choice to make, a restraint to exercise: Do not kill!

That was hard, oh, hard. The necessity exercised his capacity for integration and imposed so stern a limitation that during the second it took him to adjust the Rull came to within ten feet of him.

What saved him was the pressure of the air on the metal plate. The air tilted it like a wing of a plane becoming airborne. At the bottom of that metal he fired his irresistible weapon, seared it, burned it, deflected it to a crash landing in a clump of bushes twenty feet to his right.

Jamieson was deliberately slow in following up his success. When he reached the bushes the Rull was fifty feet beyond it gliding on its multiple suckers over the top of a hillock. It disappeared into a clump of trees.

He did not pursue it or fire a second time. Instead he gingerly pulled the Rull antigravity plate out of the brush and examined it. The question was, how had the Rull de-gravitized it without the elaborate machinery necessary? And if it was capable of creating such a "parachute" for itself why hadn't it floated down to the forest land far below where food would be available and where it would be safe from its human enemy?

One question was answered the moment he lifted the plate. It was "normal" weight, its energy apparently exhausted after traveling less than a hundred feet. It had obviously never been capable of making the mile and a half trip to the forest and plain below.

Jamieson took no chances. He dropped the plate over the nearest precipice, and watched it fall into distance. He was back in the lifeboat, when he remembered the "varnish."

Why, there had been no cue, not yet.

He tested the scraping he had brought with him. Chemically, it turned out to be a simple resin, used to make varnishes. Atomically, it was stabilized. Electronically, it transformed light into energy on the vibration level of human thought.

It was alive all right. But what was the recording?

Jamieson made a graph of every material and energy level, for comparison purposes. As soon as he had established that it had been altered on the electronic level--which had been obvious, but which, still, had to be proved--he recorded the images on a visiwire. The result was a hodgepodge of dreamlike fantasies.

Symbols. He took down his book, "Symbol Interpretations of the Unconscious," and found the cross reference: "Inhibitions, Mental."

On the referred page and line, he read: "Do not kill!"

"Well, I'll be--" Jamieson said aloud into the silence of the lifeboat interior. "That's what happened."

He was relieved, and then not so relieved. It had been his personal intention not to kill at this stage. But the Rull hadn't known that. By working such a subtle inhibition, it had dominated the attack even in defeat.

That was the trouble. So far he had got out of situations, but had created no successful ones in retaliation. He had a hope but that wasn't enough.

He must take no more risks. Even his final experiment must wait until the day the Orion was due to arrive.

Human beings were just a little too weak in certain directions. Their very life cells had impulses which could be stirred by the cunning and the remorseless.

He did not doubt that, in the final issue, the Rull would try to stir.

~ * ~

On the ninth night, the day before the Orion was due, Jamieson refrained from putting out a can of food. The following morning he spent half an hour at the radio, trying to contact the battleship. He made a point of broadcasting a detailed account of what had happened so far, and he described what his plans were, including his intention of testing the Rull to see if it had suffered any injury from its period of hunger.

Subspace was as silent as death. Not a single pulse of vibration answered his call.

He finally abandoned the attempt to establish contact, and went outside. Swiftly, he set up the instruments he would need for his experiment. The tableland had the air of a deserted wilderness. He tested his equipment, then looked at his watch. It showed eleven minutes of noon. Suddenly jittery, he decided not to wait the extra minutes.

He walked over, hesitated, and then pressed a button. From a source near the screen, a rhythm on a very high energy level was being broadcast. It was a variation of the rhythm pattern to which the Rull had been subjected for four nights.

Slowly, Jamieson retreated toward the lifeboat. He wanted to try again to contact the Orion. Looking back, he saw the Rull glide into the clearing, and head straight for the source of the vibration.

As Jamieson paused involuntarily, fascinated, the main alarm system of the lifeboat went off with a roar. The sound echoed with an alien eeriness on the wings of the icy wind that was blowing, and it acted like a cue. His wrist radio snapped on, synchronizing automatically with the powerful radio in the lifeboat. A voice said urgently:

"Professor Jamieson, this is the battleship Orion. We heard your earlier calls but refrained from answering. An entire Rull fleet is cruising in the vicinity of the Laertes sun.

"In approximately five minutes, an attempt will be made to pick you up. Meanwhile--drop everything."

Jamieson dropped. It was a physical movement, not a mental one. Out of the corner of one eye, even as he heard his own radio, he saw a movement in the sky. Two dark blobs, that resolved into vast shapes. There was a roar as the Rull super-battleships flashed by overhead. A cyclone followed their passage, that nearly tore him from the ground, where he clung desperately to the roots of intertwining brush.

At top speed, obviously traveling under gravitonic power, the enemy warships turned a sharp somersault, and came back toward the tableland. Expecting death, and beginning to realize some of the truth of the situation on the tableland, Jamieson quailed. But the fire flashed past him, not at him. The thunder of the shot rolled toward Jamieson, a colossal sound, that yet did not blot out his sense awareness of what had happened. His lifeboat. They had fired at his lifeboat.

He groaned as he pictured it destroyed in one burst of intolerable flame. And then, for a moment, there was no time for thought or anguish.

A third warship came into view, but, as Jamieson strained to make out its contours, it turned and fled. His wrist radio clicked on:

"Cannot help you now. Save yourself. Our four accompanying battleships and attendant squadrons will engage the Rull fleet, and try to draw them toward our great battle group cruising near the star, Bianca, and then re--"

A flash of vivid fire in the distant sky ended the message. It was a full minute before the cold air of Laertes III echoed to the remote thunder of the broadside. The sound died slowly, reluctantly, as if endless little overtones of it were clinging to each molecule of air.

The silence that settled finally was, strangely, not peaceful. But like the calm before a storm, a fateful, quiescent stillness, alive with unmeasurable threat.

Shakily, Jamieson climbed to his feet. It was time to assess the immediate danger that had befallen him. The greater danger he dared not even think about.

~ * ~

Jamieson headed first for his lifeboat. He didn't have to go all the way. The entire section of the cliff had been sheared away. Of the ship there was no sign.

It pulled him up short. He had expected it, but the shock of the reality was terrific.

He crouched like an animal, and stared up into the sky, into the menacing limits of the sky. It was empty of machines. Not a movement was there, not a sound came out of it, except the sound of the east wind. He was alone in a universe between heaven and earth, a mind poised at the edge of an abyss.

Into his mind, tensely waiting, pierced a sharp understanding. The Rull ships had flown once over the mountain to size up the situation on the tableland, and then had tried to destroy him.

Who was the Rull here with him, that super-battleships should roar down to insure that no danger remained for it on the tableland?

Well, they hadn't quite succeeded. Jamieson showed his teeth into the wind. Not quite. But he'd have to hurry. At any moment, they might risk one of their destroyers in a rescue landing.

As he ran, he felt himself one with the wind. He knew that feeling, that sense of returning primitiveness during moments of excitement. It was like that in battles, and the important thing was to yield one's whole body and soul to it. There was no such thing as fighting efficiently with half your mind or half your body. All, all, was demanded.

He expected falls, and he had them. Each time he got up, almost unconscious of the pain, and ran on again. He arrived bleeding--but he arrived.

The sky was silent.

From the shelter of a line of brush, he peered at the Rull.

The captive Rull, his Rull to do with as he pleased. To watch, to force, to educate--the fastest education in the history of the world. There wasn't any time for a leisurely exchange of information.

From where he lay, he manipulated the controls of the screen.

The Rull had been moving back and forth in front of the screen. Now, it speeded up, then slowed, then speeded up again, according to his will.

~ * ~

Some thousands of years before, in the Twentieth Century, the classic and timeless investigation had been made of which this was one end result. A man called Pavlov fed a laboratory dog at regular intervals, to the accompaniment of the ringing of a bell. Soon, the dog's digestive system responded as readily to the ringing of the bell without the food as to the food and the bell together.

Pavlov himself never did realize the most important reality behind his conditioning process. But what began on that remote day ended with a science that could control animals and aliens --and men--almost at will. Only the Rulls baffled the master experimenters in the later centuries when it was an exact science. Defeated by the will to death of all Rull captives, the scientists foresaw the doom of Earth's galactic empire unless some beginning could be made in penetrating the minds of Rulls.

It was his desperate bad luck that he had no time for real penetrations.

There was death here for those who lingered.

But even what he had to do, the bare minimum of what he had to do, would take precious time. Back and forth, back and forth; the rhythm of obedience had to be established.

The image of the Rull on the screen was as lifelike as the original. It was three dimensional, and its movements were like an automaton. The challenger was actually irresistible. Basic nerve centers were affected. The Rull could no more help falling into step than it could resist the call of the food impulse.

After it had followed that mindless pattern for fifteen minutes, changing pace at his direction, Jamieson started the Rull and its image climbing trees. Up, then down again, half a dozen times. At that point, Jamieson introduced an image of himself.

Tensely, with one eye on the sky and one on the scene before him, he watched the reactions of the Rull--watched them with narrowed eyes and a sharp understanding of Rull responses to the presence of human beings. Rulls were digestively stimulated by the odor of man. It showed in the way their suckers opened and closed. When a few minutes later, he substituted himself for his image, he was satisfied that this Rull had temporarily lost its normal automatic hunger when it saw a human being.

And now that he had reached the stage of final control, he hesitated. It was time to make his tests. Could he afford the time?

He realized that he had to. This opportunity might not occur again in a hundred years.

When he finished the tests twenty-five minutes later, he was pale with excitement. He thought: This is it. We've got it.

He spent ten precious minutes broadcasting his discovery by means of his wrist radio--hoping that the transmitter on his lifeboat had survived its fall down the mountain, and was picking up the thready message of the smaller instrument, and sending it out through subspace.

During the entire ten minutes, there was not a single answer to his call.

Aware that he had done what he could, Jamieson headed for the cliff's edge he had selected as a starting point. He looked down, and shuddered, then remembered what the Orion had said: "An entire Rull fleet cruising--"

Hurry!

He lowered the Rull to the first ledge. A moment later he fastened the harness around his own body, and stepped into space. Sedately, with easy strength, the Rull gripped the other end of the rope, and lowered him down to the ledge beside it.

They continued on down and down. It was hard work although they used a very simple system.

A long plastic "rope" spanned the spaces for them. A metal "climbing" rod, used to scale the smooth vastness of a spaceship's side, held position after position while the rope did its work.

~ * ~

On each ledge, Jamieson burned the rod at a downward slant into solid rock. The rope slid through an arrangement of pulleys in the metal as the Rull and he, in turn, lowered each other to ledges farther down.

The moment they were both safely in the clear of one ledge, Jamieson would explode the rod out of the rock, and it would drop down ready for use again.

The day sank towards darkness like a restless man into sleep, slowly, wearily. Jamieson grew hot and tired, and filled with the melancholy of the fatigue that dragged at his muscles.

He could see that the Rull was growing more aware of him. It still co-operated, but it watched him with intent eyes each time it swung him down.

The conditioned state was ending. The Rull was emerging from its trance. The process should complete before night.

There was a time, then, when Jamieson despaired of ever getting down before the shadows fell. He had chosen the western, sunny side for that fantastic descent down a black-brown cliff the like of which did not exist elsewhere in the known worlds of space. He found himself watching the Rull with quick, nervous glances. When it swung him down onto a ledge beside it, he watched its blue eyes, its staring blue eyes, come closer and closer to him, and then as his legs swung below the level of those strange eyes, they twisted to follow him.

The intent eyes of the other reminded Jamieson of his discovery. He felt a fury at himself that he had never reasoned it out before. For centuries man had known that his own effort to see clearly required a good twenty-five per cent of the energy of his whole body. Human scientists should have guessed that the vast wave compass of Rull eyes was the product of a balancing of glandular activity on a fantastically high energy level. A balancing which, if disturbed, would surely affect the mind itself either temporarily or permanently.

He had discovered that the impairment was permanent.

What would a prolonged period of starvation diet do to such a nervous system?

The possibilities altered the nature of the war. It explained why Rull ships had never attacked human food sources or supply lines; they didn't want to risk retaliation. It explained why Rull ships fought so remorselessly against Earth ships that intruded into their sectors of the galaxy. It explained their ruthless destruction of other races. They lived in terror that their terrible weakness would be found out.

Jamieson smiled with a savage anticipation. If his message had got through, or if he escaped, Rulls would soon feel the pinch of hunger. Earth ships would concentrate on that one basic form of attack in the future. The food supplies of entire planetary groups would be poisoned, convoys would be raided without regard for casualties. Everywhere at once the attack would be pressed without let-up and without mercy.

It shouldn't be long before the Rull began his retreat to his own galaxy. That was the only solution that would be acceptable. The invader must be driven back and back, forced to give up his conquests of a thousand years.

~ * ~

4:00 p.m. Jamieson had to pause again for a rest. He walked to the side of the ledge away from the Rull, and sank down on the rock. The sky was a brassy blue, silent and windless now, a curtain drawn across the black space above, concealing what must already be the greatest Rull-human battle in ten years.

It was a tribute to the five Earth battleships and their escort that no Rull ship had yet attempted to rescue the Rull on the tableland.

Possibly, of course, they didn't want to give away the presence of one of their own kind.

Jamieson gave up the futile speculation. Wearily, he compared the height of the cliff above with the depth that remained below. He estimated they had come two-thirds of the distance. He saw that the Rull was staring out over the valley. Jamieson turned and gazed with it.

The scene which they took in with their different eyes and different brains was fairly drab and very familiar, yet withal strange and wonderful. The forest began a quarter of a mile from the bottom of the cliff, and it almost literally had no end. It rolled up over the hills and down into the shallow valleys. It faltered at the edge of a broad river, then billowed out again, and climbed the slopes of mountains that sprawled mistily in distance.

His watch showed 4:15. Time to get going again.

At twenty-five minutes after six, they reached a ledge a hundred and fifty feet above the uneven plain. The distance strained the capacity of the rope, but the initial operation of lowering the Rull to freedom and safety was achieved without incident. Jamieson gazed down curiously at the worm. What would it do now that it was in the clear?

It looked up at him and waited.

That made him grim. Because this was a chance he was not taking. Jamieson waved imperatively at the Rull, and took out his blaster. The Rull backed away, but only into the safety of a gigantic rock. Blood-red, the sun was sinking behind the mountains. Darkness moved over the land. Jamieson ate his dinner. It was as he was finishing it that he saw a movement below.

He watched, as the Rull glided along close to the edge of the precipice.

It disappeared beyond an outjut of the cliff.

~ * ~

Jamieson waited briefly, then swung out on the rope. The descent drained his strength, but there was solid ground at the bottom. Three quarters of the way down, he cut his finger on a section of the rope that was unexpectedly rough.

When he reached the ground, he noticed that his finger was turning an odd gray. In the dimness, it looked strange and unhealthy.

As Jamieson stared at it, the color drained from his face. He thought in a bitter anger: The Rull must have smeared it on the rope on his way down.

A pang went through his body. It was knife sharp, and it was followed instantly by a stiffness. With a gasp, he grabbed at his blaster, to kill himself. His hand froze in midair. He fell to the ground. The stiffness held him there, froze him there, moveless.

The will to death is in all life. Every organic cell ecphorizes the inherited engrams of its inorganic origin. The pulse of life is a squamous film superimposed on an underlying matter so intricate in its delicate balancing of different energies that life itself is but a brief, vain straining against that balance.

For an instant of eternity, a pattern is attempted. It takes many forms, but these are apparent. The real shape is always a time and not a space shape. And that shape is a curve. Up and then down. Up from the darkness into the light, then down again into the blackness.

The male salmon sprays his mist of milt onto the eggs of the female. And instantly he is seized with a mortal melancholy. The male bee collapses from the embrace of the queen he has won, back into that inorganic mold from which he climbed for one single moment of ecstasy. In man, the fateful pattern is repressed into quadrillions of individual cells.

But the pattern is there. Waiting.

Long before, the sharp-minded Rull scientists, probing for chemical substances that would shock man's system into its primitive forms, found the special secret of man's will to death.

The yeli, Meeesh, gliding back towards Jamieson did not think of the process. He had been waiting for the opportunity. It had occurred. He was intent on his own purposes.

Briskly, he removed the man's blaster, then he searched for the key to the lifeboat. And then he carried Jamieson a quarter of a mile around the base of the cliff to where the man's ship had been catapulted by the blast from the Rull warship.

Five minutes later, the powerful radio inside was broadcasting on Rull wave lengths, an imperative command to the Rull fleet.

~ * ~

Dimness. Inside and outside his skin. He felt himself at the bottom of a well, peering out of night into twilight. As he lay, a pressure of something swelled around him, lifted him higher and higher, and nearer to the mouth of the well.

He struggled the last few feet, a distinct mental effort, and looked over the edge. Consciousness.

He was lying on a raised table inside a room which had several large mouselike openings at the floor level, openings that led to other chambers. Doors, he identified, odd-shaped, alien, unhuman. Jamieson cringed with the stunning shock of recognition.

He was inside a Rull warship.

There was a slithering of movement behind him. He turned his head, and rolled his eyes in their sockets.

In the shadows, three Rulls were gliding across the floor towards a bank of instruments that reared up behind and to one side of him. They pirouetted up an inclined plane and poised above him. Their pale eyes, shiny in the dusk of that unnatural chamber, peered down at him.

Jamieson tried to move. His body writhed in the confines of the bonds that held him. That brought a sharp remembrance of the death-will chemical that the Rull had used. Relief came surging. He was not dead. Not dead. NOT DEAD. The Rull must have helped him, forced him to move, and so had broken the downward curve of his descent to dust.

He was alive--for what?

The thought slowed his joy. His hope snuffed out like a flame. His brain froze into a tensed, terrible mask of anticipation.

As he watched with staring eyes, expecting pain, one of the Rulls pressed a button. Part of the table on which Jamieson was lying, lifted. He was raised to a sitting position.

What now?

He couldn't see the Rulls. He tried to turn, but two head shields clamped into the side of his head, and held him firmly.

He saw that there was a square of silvery sheen on the wall which he faced. A light sprang onto it, and then a picture. It was a curiously familiar picture, but at first because there was a reversal of position Jamieson couldn't place the familiarity.

Abruptly, he realized.

It was a twisted version of the picture that he had shown the Rull, first when he was feeding it, and then with more weighty arguments after he discovered the vulnerability of man's mortal enemy.

He had shown how the Rull race would be destroyed unless it agreed to peace.

In the picture he was being shown it was the Rull that urged co-operation between the two races. They seemed unaware that he had not yet definitely transmitted his knowledge to other human beings. Or perhaps that fact was blurred by the conditioning he had given to the Rull when he fed it and controlled it.

As he glared at the screen, the picture ended--and then started again. By the time it had finished a second time, there was no doubt. Jamieson collapsed back against the table. They would not show him such a picture unless he was to be used as a messenger.

He would be returned home to carry the message that man had wanted to hear for a thousand years. He would also carry the information that would give meaning to the offer.

The Rull-human war was over.