BLACK DESTROYER
    
    by
    
    A. E. VAN VOGT
        
    ON AND ON COEURL PROWLED! The black, moonless, almost starless night yielded reluctantly before a grim reddish dawn that crept up from his left. A vague, dull light it was, that gave no sense of approaching warmth, no comfort, nothing but a cold, diffuse lightness, slowly revealing a nightmare landscape.
    Black, jagged rock and black, unliving plain took form around him, as a pale-red sun peered at last above the grotesque horizon. It was then Coeurl recognized suddenly that he was on familiar ground.
    He stopped short. Tenseness flamed along his nerves. His muscles pressed with sudden, unrelenting strength against his bones. His great forelegs—twice as long as his hindlegs—twitched with a shuddering movement that arched every razor-sharp claw. The thick tentacles that sprouted from his shoulders ceased their weaving undulation, and grew taut with anxious alertness.
    Utterly appalled, he twisted his great cat head from side to side,
    while the little hairlike tendrils that formed each ear vibrated frantically, testing every vagrant breeze, every throb in the ether.
    But there was .no response, no swift tingling along his intricate nervous system, not the faintest suggestion anywhere of the presence of the all-necessary Id. Hopelessly, Coeurl crouched, an enormous catlike figure silhouetted against the dim reddish skyline, like a distorted etching of a black tiger resting on a black rock in a shadow world.
    He had known this day would come. Through all the centuries of restless search, this day had loomed ever nearer, blacker, more frightening—this inevitable hour when he must return to the point where he began his systematic hunt in a world almost depleted of idcreatures.
    The truth struck in waves like an endless, rhythmic ache at the seat of his ego. When he had started, there had been a few idcreatures in every hundred square miles, to be mercilessly rooted out. Only too well Coeurl knew in this ultimate hour that he had missed none. There were no id-creatures left to eat. In all the hundreds of thousands of square miles that h~ had made his own by right of ruthless conquest—until no neighboring coeurl dared to question his sovereignty—there was no Id to feed the otherwise immortal engine that was his body.
    Square foot by square foot he had gone over it. And now—he recognized the knoll of rock just ahead, and the black rock bridge that formed a queer, curling tunnel to his right. It was in that tunnel he h~d lain for days, waiting for the simple-minded, snakelike idcreature to come forth from its hole in the rock to bask in the sun—j his first kill after he had realized the absolute necessity of organized extermination.
    He licked his lips in brief gloating memory of the moment his slavering jaws tore the victim into precious toothsome bits. But the dark fear of an idless universe swept the sweet remembrance from his consciousness, leaving only certainty of death.
    He snarled audibly, a defiant, devilish sound that quavered on the air, echoed and re-echoed among the rocks, and shuddered back along his nerves—instinctive and hellish expression of his will to live.
    And then—abruptly—it came.
    
    He saw it emerge out of the distance on a long downward slant, a tiny glowing spot that grew enormously into a metal ball. The great
    shining globe hissed by above Coeurl, slowing visibly in quick deceleration. It sped over a black line of hills to the right, hovered almost motionless for a second, then sank down out of sight.
    Coeurl exploded from his startled immobility. With tiger speed, he flowed down among the rocks. His round, black eyes burned with the horrible desire that was an agony within him. His ear tendrils vibrated a message of id in such tremendous quantities that his body felt sick with the pangs of his abnormal hunger.
    The little red sun was a crimson ball in the purple-black heavens when he crept up from behind a mass of rock and gazed from its shadows at the crumbling, gigantic ruins of the city that sprawled below him. The silvery globe, in spite of its great size, looked strangely inconspicuous against that vast, fairylike reach of ruins. Yet about it was a leashed aliveness, a dynamic quiescence that, after a moment, made it stand out, dominating the foreground. A massive, rock-crushing thing of metal, it rested on a cradle made by its own weight in the harsh, resisting plain which began abruptly at the outskirts of the dead metropolis.
    Coeurl gazed at the strange, two-legged creatures who stood in little groups near the brilliantly lighted opening that yawned at the base of the ship. His throat thickened with the immediacy of his need; and his brain grew dark with the first wild impulse to burst forth in furious charge and smash these flimsy, helpless-looking creatures whose bodies emitted the id-vibrations.
    Mists of memory stopped that mad rush when it was still only electricity surging through his muscles. Memory that brought fear in an acid stream of weakness, pouring along his nerves, poisoning the reservoirs of his strength. He had time to see that the creatures wore things over their real bodies, shimmering transparent material that glittered in strange, burning flashes in the rays of the sun.
    Other memories came suddenly. Of dim days when the city that spread below was the living, breathing heart of an age of glory that dissolved in a single century before flaming guns whose wielders knew only that for the survivors there would be an ever-narrowing supply of id.
    It was the remembrance of those guns that held him there, cringing in a wave of terror that blurred his reason. He saw himself smashed by balls of metal and burned by searing flame.
    Came cunning—understanding of the presence of these creatures. This, Coeurl reasoned for the first time, was a scientific expedition from another star. In the olden days, the coeurls had thought of
    space travel, but disaster came too swiftly for it ever to be more than a thought.
    Scientists meant, investigation, not destruction. Scientists in their way were fools. Bold with his knowledge, he emerged into the open. He saw the creatures become aware of him. They turned and stared. One, the smallest of the group, detached a shining metal rod from a sheath, and held it casually in one hand. Coeurl loped on, shaken to his core by the action; but it was too late to turn back.
    
    Commander Hal Morton heard little Gregory Kent, the chemist, laugh with the embarrassed half gurgle with which he invariably announced inner uncertainty. He saw Kent fingering the spindly metalite weapon.
    Kent said: “I’ll take no chances with anything as big as that.”
    Commander Morton allowed his own deep chuckle to echo along the communicators. “That,” he grunted finally, “is one of the reasons why you’re on this expedition, Kent—because you never leave anything to chance.”
    His chuckle trailed off into silence. Instinctively, as he watched the monster approach them across that black rock plain, he moved forward until he stood a little in advance of the others, his huge form bulking the transparent metalite suit. The comments of the men pattered through the radio communicator into his ears:
    “I’d hate to meet that baby on a dark night in an alley.”
    “Don’t be silly. This is obviously an intelligent creature. Probably a member of the ruling race.”
    “It looks like nothing else than a big cat, if you forget those tentacles sticking out from its shoulders, and make allowances for those monster forelegs.”
    “Its physical development,” said a voice, which Morton recognized as that of Siedel, the psychologist~ “presupposes an animal-like adaptation to surroundings, not an intellectual one. On the other hand, its coming to us like this is not the act of an animal but of a creature possessing a mental awareness of our possible identity. You will notice that its movements are stiff, denoting caution, which suggests fear and consciousness of our weapons. I’d like to get a good look at the end of its tentacles. If they taper into handlike appendages that can really grip objects, then the conclusion would be inescapable that it is a descendant of the inhabitants of this city. It would be a great help if we could establish communication with it, even though appearances indicate that it has degenerated into a historyless primitive.”
    Coeurl stopped when he was still ten feet from the foremost creature. The sense of id was so overwhelming that his brain drifted to the ultimate verge of chaos. He felt as if his limbs were bathed in molten liquid; his very vision was not quite clear, as the sheer sensuality of his desire thundered through his being.
    The men—all except the little one with the shining metal rod in his fingers—came closer. Coeurl saw that they were frankly and curiously examining him. Their lips were moving, and their voices beat in a monotonous, meaningless rhythm on his ear tendrils. At the same time he had the sense of waves of a much higher frequency— his own communication level—only it was a machinelike clicking that jarred his brain. With a distinct effort to appear friendly, he broadcast his name from his ear tendrils, at the same time pointing at himself with one curving tentacle.
    Gourlay, chief of communications, drawled: “I got a sort of static in my radio when he wiggled those hairs, Morton. Do you think—”
    “Looks very much like it,” the leader answered the unfinished question. “That means a job for you, Gourlay. If it speaks by means of radio waves, it might not be altogether impossible that you can create some sort of television picture of its vibrations, or teach him the Morse code.”
    “Ah,” said Siedel. “I was right. The tentacles each develop into seven strong fingers. Provided the nervous system is complicated enough, those fingers could, with training, operate any machine.”
    
    Morton said: “I think we’d better go in and have some lunch. Afterward, we’ve got to get busy. The material men can set up their machines and start gathering data on the planet’s metal possibilities, and so on. The others can do a little careful exploring. I’d like some notes on architecture and on the scientific development of this race, and particularly what happened to wreck the civilization. On earth civilization after civilization crumbled, but always a new one sprang up in its dust. Why didn’t that happen here? Any questions?”
    “Yes. What about pussy? Look, he wants to come in with us.”
    Commander Morton frowned, an action that emphasized the deep-space pallor of his face. “I wish there was some way we could take it in with us, without forcibly capturing it. Kent, what do you think?”
    “I think we should first decide whether it’s an it or a him, and call it one or the other. I’m in favor of him. As for taking him in with us—” The little chemist shook his head decisively. “Impossible. This atmosphere is twenty-eight per cent chlorine. Our oxygen would be pure dynamite to his lungs.”
    The commander chuckled. “He doesn’t believe that, apparently.” He watched the catlike monster follow the first two men through the great door. The men kept an anxious distance from him, then glanced at Morton questioningly. Morton waved his hand. “0. K. Open the second lock and let him get a whiff of the oxygen. That’ll cure him.”
    A moment later, he cursed his amazement. “By Heaven, he doesn’t even notice the difference! That means he hasn’t any lungs, or else the chlorine is not what his lungs use. Let him in! You bet he can go in! Smith, here’s a treasure house for a biologist—harmless enough if we’re careful. We can always handle him. But what a metabolism!”
    Smith, a tall, thin, bony chap with a long, mournful face, said in an oddly forceful voice: “In all our travels, we’ve found only two higher forms of life. Those dependent on chlorine, and those who need oxygen—the two elements that support combustion. I’m prepared to stake my reputation that no complicated organism could ever adapt itself to both gases in a natural way. At first thought I should say here is an extremely advanced form of life. This race long ago discovered truths of biology that we are just beginning to suspect. Morton, we mustn’t let this creature get away if we can help it.”
    “If his anxiety to get inside is any criterion,” Commander Morton laughed, “then our difficulty will be to get rid of him:~
    He moved into the lock with Coeurl and the two men. The automatic machinery hummed; and in a few minutes they were standing at the bottom of a series of elevators that led up to the living quarters’
    “Does that go up?” One of the men flicked a thumb in the direction of the monster.
    “Better send him up alone, if he’ll go in.”
    Coeurl offered no objection, until he heard the door slam behind him; and the closed cage shot upward. He whirled with a savage snarl, his reason swirling into chaos. With one leap, he pounced at the door. The metal bent under his plunge, and the desperate pain maddened him. Now, he was all trapped animal. He smashed at the metal with his paws, bending it like so much tin. He tore great bars loose with his thick tentacles. The machinery screeched; there were horrible jerks as the limitless power pulled the cage along in spite of projecting pieces of metal that scraped the outside walls. And then the cage stopped, and he snatched off the rest of the door and hurtled into the corridor.
    He waited there until Morton and the men came up with drawn weapons. “We’re fools,” Morton said. “We should have shown him how it works. He thought we’d double-crossed him.”
    He motioned to the monster, and saw the savage glow fade from the coal-black eyes as he opened and closed the door with elaborate gestures to show the’ operation.
    Coeurl ended the lesson by trotting into the large room to his right. He lay down on the rugged floor, and fought down the electric tautness of his nerves and muscles. A very fury of rage against himself for his fright consumed him. It seemed to his burning brain that he had lost the advantage of appearing a mild and harmless creature. His strength must have startled and dismayed them.
    It meant greater danger in the task which he now knew he must accomplish: To kill everything in the ship, and take the machine back to their world in search of unlimited id.
    
    With unwinking eyes, Coeurl lay and watched the two men clearing away the loose rubble from the metal doorway of the huge old building. His whole body ached with the hunger of his cells for id. The craving tore through his palpitant muscles, and throbbed like a living thing in his brain. His every nerve quivered to be off after the men who had wandered into the city. One of them, he knew, had gone—alone.
    The dragging minutes fled~ and still he restrained himself, still he lay there watching, aware that the men knew he watched. They floated a metal machine from the ship to the rock mass that blocked the great half-open door, under the direction of a third man. No flicker of their fingers escaped his fierce stare, and slowly, as the simplicity of the machinery became apparent to him, contempt grew upon him.
    He knew what to expect finally, when the flame flared in incandescent violence and ate ravenously at the hard rock beneath. But in spite of his preknowledge, he deliberately jumped and snarled as if in fear, as that white heat burst forth. His ear tendrils caught the laughter of the men, their curious pleasure at his simulated di~may.
    The door was released, and Morton came over and went inside with the third man. The latter shook his head.
    “It’s a shambles. You can catch the drift of the stuff. Obviously, they used atomic energy, but . . . but it’s in wheel form. That’s a peculiar development. In our science, atomic energy brought in the nonwheel machine. It’s possible that here they’ve progressed further
    to a new type of wheel mechanics. I hope their libraries are better preserved than this, or we’ll never know. What could have happened to a civilization to make it vanish like this?”
    A third voice broke through the communicators: “This is Siedel. I heard your question, Pennons. Psychologically and sociologically speaking, the only reason why a territory becomes uninhabited is lack of food.”
    “But they’re so advanced scientifically, why didn’t they develop space flying and go elsewhere for their food?”
    “Ask Gunlie Lester,” interjected Morton. “I heard him expounding some theory even before we landed.”
    The astronomer answered the first call. “I’ve still got to verify all my facts, but this desolate world is the only planet revolving around that miserable red sun. There’s nothing else. No moon, not even a planetoid. And the nearest star system is nine hundred light-years away.
    “So tremendous would have been the problem of the ruling race of this world, that in one jump they would not only have had to solve interplanetary but interstellar space traveling. ‘When you consider how slow our own development was—first the moon, then Venus—each success leading to the next, and after centuries to the nearest stars; and last of all to the anti-accelerators that permitted galactic travel—considering all this, I maintain it would be impossible for any race to create such machines without practical experience. And, with the nearest star so far away, they had no incentive for the space adventuring that makes for experience.”
    
    Coeurl was trotting briskly over to another group. But now, in the driving appetite that consumed him, and in the frenzy of his high scorn, he paid no attention to what they were doing. Memories of past knowledge, jarred into activity by what he had seen, flowed into his consciousness in an ever developing and more vivid stream.
    From group to group he sped, a nervous dynamo—jumpy, sick with Ibis awful hunger. A little car rolled up, stopping in front of him, and a formidable camera whirred as it took a picture of him. Over on a mound of rock, a gigantic telescope was rearing up toward the sky. Nearby, a disintegrating machine drilled its searing fire into an ever-deepening hole, down and down, straight down.
    Coerul’s mind became a blur of things he watched with half attention. And ever more imminent grew the moment when he knew lie could no longer carry on the torture of acting. His brain strained
    with an irresistible impatience; his body burned with the fury of his eagerness to be off after the man who had gone alone into the city.
    He could stand it no longer. A green foam misted his mouth, maddening him. He saw that, for the bare moment, nobody was looking.
    Like a shot from a gun, he was off. He floated along in great, gliding leaps, a shadow among the shadows of the rocks. In a minute, the harsh terrain hid the spaceship and the two-legged beings.
    Coeurl forgot the ship, forgot everything but his purpose, as if his brain had been wiped clear by a magic, memory-erasing brush. He circled widely, then raced into the city, along deserted streets, taking short cuts with the ease of familiarity, through gaping holes in time-weakened walls, through long corridors of moldering buildings. He slowed to a crouching lope as his ear tendrils caught the id vibrations.
    Suddenly, he stopped and peered from a scatter of fallen rock. The man was standing at what must once have been a window, sending the glaring rays of his -flashlight into the gloomy interior. The flashlight clicked off. The man, a heavy-set, powerful fellow, walked off with quick, alert steps. Coeurl didn’t like that alertness. It presaged trouble; it meant lightning reaction to danger.
    Coeurl waited till the human being ‘had vanished around a corner, then he padded into the open. He was running now, tremendously faster than a man could walk, because his plan was clear in his brain. Like a wraith, he slipped down the next street, past a long block of buildings. He turned the first corner at top speed; and then, with dragging belly, crept into the half-darkness between the building and a huge chunk of debris. The street ahead was barred by a solid line of loose rubble that made it like a valley, ending in a narrow, bottlelike neck. The neck had its outlet just below Coeurl.
    His ear tendrils caught the low-frequency waves of whistling. The sound throbbed through his being; and suddenly terror caught with icy fingers at his brain. The man would have a gun. Suppose he leveled one burst of atomic energy—one burst—before his own muscles could whip out in murder fury.
    A little shower of rocks streamed past. And then the man was beneath him. Coeurl reached out and struck a single crushing blow at the shimmering transparent headpiece of the spacesuit. There was a tearing sound of metal and a gushing of blood. The man doubled up as if part of him had been telescoped. For a moment, his bones and legs and muscles combined miraculously to keep him standing. Then he crumpled with a metallic clank of his space armor.
    Fear completely evaporated, Coeurl leaped out of hiding. With
    ravenous speed, he smashed the metal and the body within it to bits. Great chunks of metal, torn piecemeal from the suit, sprayed the ground. Bones cracked. Flesh crunched.
    It was simple to, tune in on the vibrations of the id, and to create the violent chemical disorganization that freed it from the crushed bone. The id was, Coeurl discovered, mostly in the bone.
    He felt revived, almost reborn. Here was more food than he had had in the whole past year.
    Three minutes, and it was over, and Coeurl was off like a thing fleeing dire danger. Cautiously, he approached the glistening globe from the opposite side to that by which he had left. The men were all busy at their tasks. Gliding noiselessly, Coeurl slipped unnoticed up to a group of men.
    
    Morton stared down at the horror of tattered flesh, metal and blood on the rock at his feet, and felt a tightening in his throat that prevented speech. He heard Kent say:
    “He would go alone, damn him!” The little chemist’s voice held a sob imprisoned; and Morton remembered that Kent and Jarvey had chummed together for years in the way only two men can.
    “The worst part of it is,” shuddered one of the men, “it looks like a senseless murder. His body is spread out like little lumps of flattened jelly, but it seems to be all there. I’d almost wager that if we weighed everything here, there’d still be one hundred and seventy-five pounds by earth gravity. That’d be about one hundred and seventy pounds here.”
    Smith broke in, his mournful face lined with gloom: “The killer attacked Jarvey, and then discovered his flesh was alien—uneatable. Just like our big cat. Wouldn’t eat anything we set before him—” His words died out in sudden, queer silence. Then he said slowly:
    “Say, what about that creature? He’s big enough and strong enough to have done this with his own little paws.”
    Morton frowned. “It’s a thought. After all, he’s the only living thing we’ve seen. We can’t just execute him on suspicion, of course—”
    “Besides,” said one of the men, “he was never out of my sight.”
    Before Morton could speak, Siedel, the psychologist, snapped, “Positive about that?”
    The man hesitated. “Maybe he was for a few minutes. He was wandering around so much, looking at everything.”
    “Exactly,” said Siedel with satisfaction. He turned to Morton. “You see, commander, I, too, had the impression that he was always
    around; and yet, thinking back over it, I find gaps. There were moments—probably long minutes—when he was completely out of sight.”
    Morton’s face was dark with thought, as Kent broke in fiercely:
    “I say, take no chances. Kill the brute on suspicion before he does any more damage.”
    Morton said slowly: “Korita, you’ve been wandering around with Cranessy and Van Home. Do you think pussy is a descendant of the ruling class of this planet?”
    The tall Japanese archeologist stared at the sky as if collecting his mind. “Commander Morton,” he said finally, respectfully, “there is a mystery here. Take a look, all of you, at that majestic skyline. Notice the almost Gothic outline of the architecture. In spite of the megalopolis which they created, these people were close to the soil. The buildings are not simply ornamented. They are ornamental in themselves. Here is the equivalent of the Done column, the Egyptian pyramid, the Gothic cathedral, growing out of the ground, earnest, big with destiny. If this lonely, desolate world can be regarded as a mother earth, then the land had a warm, a spiritual place in the hearts of the race.
    “The effect is emphasized by the winding streets. Their machines prove they were mathematicians, but they were artists first; and so they did not create the geometrically designed cities of the ultra-sophisticated world metropolis. There is a genuine artistic abandon, a deep joyous emotion written in the curving and unmathematical arrangements of houses, buildings and avenues; a sense of intensity, of divine belief in an inner certainty. This is not a decadent, hoary-with-age civilization, but a young and vigorous culture, confident, strong with purpose.
    “There it ended. Abruptly, as if at this point culture had its Battle of Tours, and began to collapse like the ancient Mohammedan civilization. Or as if in one leap it spanned the centuries and entered the period of contending states. In the Chinese civilization that period occupied 480-230 B. C., at the end of which the State of Tsin saw the beginning of the Chinese Empire. This phase Egypt experienced between 1780-1580 B. C., of which the last century was the ‘Hyksos’—unmentionable—time. The classical experienced it from Ch~ronea—3 38—and, at the pitch of horror, from the Gracchi
    —133—to Actium—3i B. C. The West European Americans were devastated by it in the nineteenth and twentieth centuries, and
    modern historians agree that, nominally, we entered the same phase fifty years ago; though, of course, we have solved the problem.
    “You may ask, commander, what has all this to do with your question? My answer is: there is no record of a culture entering abruptly into the period of contending states. It is always a siow development; and the first step is a merciless questioning of all that was once held sacred. Inner certainties cease to exist, are dissolved before the ruthless probings of scientific and analytic minds. The skeptic becomes the highest type of being
    “I say that this culture ended abruptly in its most flourishing age. The sociological effects of such a catastrophe would be a sudden vanishing of morals, a reversion to almost bestial criminality, unleavened by any sense of ideal, a callous indifference to death. If this
    this pussy is a descendant of such a race, then he will be a cunning creature, a thief in the night, a cold-blooded murderer, who would cut his own brother’s throat for gain.”
    
    “That’s enough!” It was Kent’s clipped voice. “Commander, I’m willing to act the role of executioner.”
    Smith interrupted sharply: “Listen, Morton, you’re not going to kill that cat yet, even if he is guilty. He’s a biological treasure house.”
    Kent and Smith were glaring angrily at each other. Morton frowned at them thoughtfully, then said: “Korita, I’m inclined to accept your theory as a working basis. But one question: Pussy comes from a period earlier than our own? That is, we are entering the highly civilized era of our culture, while he became suddenly historyless in the most vigorous period of his. But it is possible that his culture is a later one on this planet than ours is in the galactic-wide system we have civilized?”
    “Exactly. His may be the middle of the tenth civilization of his world; while ours is the end of the eighth sprung from earth, each of the ten, of course, having been builded on the ruins of the one before it.”
    “In that case, pussy would not know anything about the skepticism that made it possible for us to find him out so positively as a criminal and murderer?”
    “No; it would be literally magic to him.”
    Morton was smiling grimly. “Then I think you’ll get your wish, Smith. We’ll let pussy live; and if there are any fatalities, now that we know him, it will be due to rank carelessness. There’s just the chance, of course, that we’re wrong. Like Siedel, I also have the impression
    that he was always around. But now—we can’t leave poor Jarvey here like this. We’ll put him in a coffin and bury him.”
    “No, we won’t!” Kent barked. He flushed. “I beg your pardon, commander. I didn’t mean it that way. I maintain pussy wanted something from that body. It looks to be all there, but something must be missing. I’m going to find out what, and pin this murder on him so that you’ll have to believe it beyond the shadow of a doubt.”
    
    It was late night when Morton looked up from a book and saw Kent emerge through the door that led from the laboratories below.
    Kent carried a large, flat bowl in his hands; his tired eyes flashed across at Morton, and he said in a weary, yet harsh, voice: “Now watch!”
    He started toward Coeurl, who lay sprawled on the great rug, pretending to be asleep.
    Morton stopped him. “Wait a minute, Kent. Any other time, I wouldn’t question your actions, but you look ill; you’re overwrought. What have you got there?”
    Kent turned, and Morton saw that his first impression had been but a flashing glimpse of the truth. There were dark pouches under the little chemist’s gray eyes—eyes that gazed feverishly from sunken cheeks in an ascetic face.
    “I’ve found the missing element,” Kent said. “It’s phosphorus. There wasn’t so much as a square millimeter of phosphorus left in Jarvey’s bones. Every bit of it had been drained out—by what super-chemistry I don’t know. There are ways of getting phosphorus out of the human body. For instance, a quick way was what happened to the workman who helped build this ship. Remember, he fell into fifteen tons of molten metalite—at least, so his relatives claimed—but the company wouldn’t pay compensation until the metalite, on analysis, was found to contain a high percentage of phosphorus—”
    “What about the bowl of food?” somebody interrupted. Men were putting away magazines and books, looking up with interest.
    “It’s got organic phosphorus in it. He’ll get the scent, or whatever it is that he uses instead of scent—”
    “I think he gets the vibrations’ of things,” Gourlay interjected lazily. “Sometimes, when he wiggles those tendrils, I get a distinct static on the radio. And then, again, there’s no reaction, just as if he’s moved higher or lower on the wave scale. He seems to control the vibrations at will.”
    Kent waited with obvious impatience until Gourlay’s last word, then
    abruptly went on: “All right, then, when he gets the vibration of the phosphorus and reacts to it like an animal, then—well, we can decide what we’ve proved by his reaction. May I go ahead, Morton?”
    “There are three things wrong with your plan,” Morton said. “In the first place, you seem to assume that he is only animal; you seem to have forgotten he may not be hungry after Jarvey; you seem to think that he will not be suspicious. But set the bowl down. His reaction may tell us something.”
    Coeurl stared with unblinking black eyes as the man set the bowl before him. His ear tendrils instantly caught the id-vibrations from the contents of the bowl—and he gave it not even a second glance.
    He recognized this two-legged being as the one who had held the weapon that morning. Danger! With a snarl, he floated to his feet. He caught the bowl with the fingerlike appendages at the end of one looping tentacle, and emptied its contents into the face of Kent, who shrank back with a yell.
    Explosively, Coeurl flung the bowl aside and snapped a hawser-thick tentacle around the cursing man’s waist. He didn’t bother with the gun that hung from Kent’s belt. It was only a vibration gun, he sensed
    —atomic powered, but not an atomic disintegrator. He tossed the kicking Kent onto the nearest couch—and realized with a hiss of dismay that he should have disarmed the man.
    Not that the gun was dangerous—but, as the man furiously wiped the gruel from his face with one hand, he reached with the other for his weapon. Coeurl crouched back as the gun was raised slowly and a white beam of flame was discharged at his massive head.
    His ear tendrils hummed as they canceled the efforts of the vibration gun. His round, black eyes narrowed as he caught the movement of men reaching for their metalite guns. Morton’s voice lashed across the silence.
    “Stop!”
    
    Kent clicked off his weapon; and Coeurl crouched down, quivering with fury at this man who had forced him to reveal something of his power.
    “Kent,” said Morton coldly, “you’re not the type to lose your head. You deliberately tried to kill pussy, knowing that the majority of us are in favor of keeping him alive. You know what our rule is: If anyone objects to my decisions, he must say so at the time. If the majority object, my decisions are overruled. In this case, no one but you objected, and, therefore, your action in taking the law into your own
    hands is most reprehensible, and automatically debars you from voting for a year.”
    Kent stared grimly at the circle of faces. “Korita was right when he said ours was a highly civilized age. It’s decadent.” Passion flamed harshly in his voice. “My God, isn’t there a man here who can see the horror of the situation? Jarvey dead only a few hours, and this creature, whom we all know to be guilty, lying there unchained, planning his next murder; and the victim is right here in this room. What kind of men are we—fools, cynics, ghouls-or is it that our civilization is so steeped in reason that we can contemplate a murderer sympathetically?”
    He fixed brooding eyes on Coeurl. “You were right, Morton, that’s no animal. That’s a devil from the deepest hell of this forgotten planet, whirling its solitary way around a dying sun.”
    “Don’t go melodramatic on us,” Morton said. “Your analysis is all wrong, so far as I am concerned. We’re not ghouls or cynics; we’re simply scientists, and pussy here is going to be studied. Now that we suspect him, we doubt his ability to trap any of us. One against a hundred hasn’t a chance.” He glanced around. “Do I speak for all of us?”
    “Not for me, commander!” It was Smith who spoke, and, as Morton stared in amazement, he continued: “In the excitement and momentary confusion, no one seems to have noticed that when Kent fired his vibration gun, the beam hit this creature squarely on his cat head—and didn’t hurt him.”
    Morton’s amazed glance went from Smith to Coeurl, and back to Smith again. “Are you certain it hit him? As you say, it all happened so swiftly—when pussy wasn’t hurt I simply assumed that Kent had missed him.”
    “He hit him in the face,” Smith said positively. “A vibration gun, of course, can’t even kill a man right away—but it can injure him. There’s no sign of injury on pussy, though, not even a singed hair.”
    “Perhaps his skin is a good insulation against heat of any kind.”
    “Perhaps. But in view of our uncertainty, I think we should lock him up in the cage.”
    While Morton frowned darkly in thought, Kent spoke up. “Now you’re talking sense, Smith.”
    Morton asked: “Then you would be satisfied, Kent, if we put him in the cage?”
    Kent considered, finally: “Yes. If four inches of micro-steel can’t hold him, we’d better give him the ship.”
    Coeurl followed the men as they went out into the corridor. He trotted docilely along as Morton unmistakably motioned him through a door he had not hitherto seen. He found himself in a square, solid metal room. The door clanged metallically behind him; he felt the flow of power as the electric lock clicked home.
    His lips parted in a grimace of hate, as he realized the trap, but he gave no other outward reaction. It occurred to him that he had progressed a long way from the sunk-into-primitiveness creature who, a few hours before, had gone incoherent with fear in an elevator cage. Now, a thousand memories of his powers were reawakened in his brain; ten thousand cunnings were, after ages of disuse, once again part of his very being.
    He sat quite still for a moment on the short, heavy haunches into which his body tapered, his ear tendrils examining his surroundings. Finally, he lay down, his eyes glowing with contemptuous fire. The fools! The poor fools!
    It was about an hour later when he heard the man—Smith—fumbling overhead. Vibrations poured upon him, and for just an instant he was startled. He leaped to his feet in pure terror—and then realized that the vibrations were vibrations, not atomic explosions. Somebody was taking pictures of the inside of his body.
    He crouched down again, but his ear tendrils vibrated, and he thought contemptuously: the silly fool would be surprised when he tried to develop those pictures.
    After a while the man went away, and for a long time there were noises of men doing things far away. That, too, died away slowly.
    Coeürl lay waiting, as he felt the silence creep over the ship. In the long ago, before the dawn of immortality, the coeurls, too, had slept at night; and the memory of it had been revived the day before when he saw some of the men dozing. At last, the vibration of two pairs of feet, pacing, pacing endlessly, was the only human-made frequency that throbbed on his ear tendrils.
    Tensely, he listened to the two watchmen. The first one walked slowly past the cage door. Then about thirty feet behind him came the second. Coeurl sensed the alertness of these men; knew that he could never surprise either while they walked separately. It meant— he must be doubly careful!
    Fifteen minutes, and they came again. The moment they were past, he switched his senses from their vibrations to a vastly higher range. The pulsating violence of the atomic engines stammered its soft story to his brain. The electric dynamos hummed their muffled
    song of pure power. He felt the whisper of that flow through the wires in the walls of his cage, and through the electric lock of his door. He forced his quivering body into straining immobility, his senses seeking, searching, to tune in on that sibilant tempest of energy. Suddenly, his ear tendrils vibrated in harmony—he caught the surging change into shrillness of that rippling force wave.
    There was a sharp click of metal on metal. With a gentle touch of one tentacle, Coeurl pushed open the door, and glided out into the dully gleaming corridor. For just a moment he felt contempt, a glow of superiority, as he thought of the stupid creatures who dared to match their wit against a coeurl. And in that moment, he suddenly thought of other coeurls. A queer, exultant sense of race pounded through his being; the driving hate of centuries of ruthless competition yielded reluctantly before pride of kinship with the future rulers of all space.
    
    Suddenly, he felt weighed down by his limitations, his need for other coeurls, his aloneness-one against a hundred, with the stake all eternity; the starry universe itself beckoned his rapacious, vaulting ambition. If he failed, there would never be a second chance—no time to revive long-rotted machinery, and attempt to solve the secret of space travel.
    He padded along on tensed paws—through the salon—into the next corridor—and came to the first bedroom door. It stood half open. One swift flow of synchronized muscles, one swiftly lashing tentacle that caught the unresisting throat of the sleeping man, crushing it, and the lifeless head rolled crazily, the body twitched once.
    Seven bedrooms; seven dead men. It was the seventh taste of murder that brought a sudden return of lust, a pure, unbounded desire to kill, return of a millennium-old habit of destroying everything containing~e precious id.
    As the iE~’ej~th man slipped convulsively into death, Coeurl emerged abruptly from~th~~ensuous joy of the kill to the sound of footsteps.
    They were not near—that was what brought wave after wave of fright swirling into the chaos that suddenly became his brain.
    
    The watchmen were coming slowly along the corridor toward the door of the cage where he had been imprisoned. In a moment, the first man would see the open door—and sound the alarm.
    Coeurl caught at the vanishing remnants of his reason. With frantic speed, careless now of accidental sounds, he raced—along the
    corridor with its bedroom doors—through the salon. He emerged into the next corridor, cringing in awful anticipation of the atomic flame he expected would stab into his face.
    The two men were together, standing side by side. For one single instant, Coeurl could scarcely believe his tremendous good luck. Like a fool the second had come running when he saw the other stop before the open door. They looked up, paralyzed, before the nightmare of claws and tentacles, the ferocious cat head and hate-filled eyes.
    The first man went for his gun, but the second, physically frozen before the doom he saw, uttered a shriek, a shrill cry of horror that floated along the corridors—and ended in a curious gurgle, as Coerl flung the two corpses with one irresistible motion the full length of the corridor. He didn’t want the dead bodies found near the cage. That was his one hope.
    Shaking in every nerve and muscle, conscious of the terrible error he had made, unable to think coherently, he plunged into the cage. The door clicked softly shut behind him. Power flowed once more through the electric lock.
    He crouched tensely, simulating sleep, as he heard the rush of many feet, caught the vibration of excited voices. He knew when somebody actuated the cage audioscope and looked in. A few moments now, and the other bodies would be discovered.
    
    “Si~del gone!” Morton said numbly. “What are we going to do without Siedel? And Breckenridge! And Coulter and— Horrible!”
    He covered his face with his hands, but only for an instant. He looked up grimly, his heavy chin outthrust as he stared into the stern faces that surrounded him. “If anybody’s got so much as a germ of an idea, bring it out.”
    “Space madness!”
    “I’ve thought of that. But there hasn’t been a case of a man going mad for fifty years. Dr. Eggert will test everybody, of course, and right now he’s looking at the bodies with that possibility in mind.”
    As he finished, he saw the doctor coming through the door. Men crowded aside to make way for him.
    “I heard you, commander,” Dr. Eggert said, “and I think I can say right now that the space-madness theory is out. The throats of these men have been squeezed to a jelly. No human being could have exerted such enormous strength without using a machine.”
    Morton saw that the doctor’s eyes kept looking down the corridor, and he shook his head and groaned:
    “It’s no use suspecting pussy, doctor. He’s in his cage, pacing up and down. Obviously heard the racket and— Man alive! You can’t suspect him. That cage was built to hold literally anything—four inches of micro-steel—and there’s not a scratch on the door. Kent, even you won’t say, ‘Kill him on suspicion,’ because there can’t be any suspicion, unless there’s a new science here, beyond anything we can imagine—”
    “On the contrary,” said Smith flatly, “we have all the evidence we need. I used the telefluor on him—you know the arrangement we have on top of the cage—and tried to take some pictures. They just blurred. Pussy jumped when the telefluor was turned on, as if he felt the vibrations.
    “You all know what Gourlay said before? This beast can apparently receive and send vibrations of any lengths. The way he dominated the power o~\Kent’s gun is final proof of his special ability to interfere with energy.”\
    “What in th~è\name of all the hells have we got here?” One of the men groaned. “Why, if he can control that power, and sent it out in any vibrations, there~s nothing to stop him killing all of us.”
    “WThich proves,” snapped Morton, “that he isn’t invincible, or he would have done it long ago.”
    Very deliberately, he walked over to the mechanism that controlled the prison cage.
    “You’re not going to open the door!” Kent gasped, reaching for his gun.
    “No, but if I pull this switch, electricity will flow through the floor, and electrocute whatever’s inside. We’ve never had to use this before, so you had probably forgotten about it.”
    He jerked the switch hard over. Blue fire flashed from the metal, and a bank of fuses above his head exploded with a single bang.
    Morton frowned. “That’s funny. Those fuses shouldn’t have blown! Well, we can’t even look in, now. That wrecked the audios, too.”
    Smith said: “If he could interfere with the electric lock, enough to open the door, then he probably probed every possible danger and was ready to interfere when you threw that switch.”
    “At least, it proves he’s vulnerable to our energies!” Morton smiled grimly. “Because he rendered them harmless. The important thing is, we’ve got him behind four inches of the toughest of metal. At the worst we can open the door and ray him to death. But first, I think we’ll try to use the telefluor power cable—”
    A commotion from inside the cage interrupted his words. A heavy body crashed against a wall, followed by a dull thump.
    “He knows what we were trying to do!” Smith grunted to Morton. “And I’ll bet it’s a very sick pussy in there. What a fool he was to go back into that cage and does he realize it!”
    The tension was relaxing; men were smiling nervously, and there was even a ripple of humorless laughter at the picture Smith drew of the monster’s discomfiture.
    “What I’d like to know,” said Pennons, the engineer, “is, why did the telefluor meter dial jump and waver at full power when pussy made that noise? It’s right under my nose here, and the dial jumped like a house afire!”
    There was silence both without and within the cage, then Morton siid: “It may mean he’s coming out. Back, everybody, and keep your guns ready. Pussy was a fool to think he could conquer a hundred men, but he’s by far the most formidable creature in the galactic system. He may come out of that door, rather than die like a rat in a trap. And he’s just tough enough to take some of us with him—if we’re not careful.”
    The men backed slowly in a solid body; and somebody said: “That’s funny. I thought I heard the elevator.”
    “Elevator!” Morton echoed. “Are you sure, man?”
    “Just for a moment I was!” The man, a member of the crew, hesitated. “We were all shuffling our feet—”
    “Take somebody with you, and go look. Bring whoever dared to run off back here-”
    The~e was a jar, a horrible jerk, as the whole gigantic body of the ship careened under them. Morton was flung to the floor with a violence that stunned him. He fought back to consciousness, aware of the other men lying all around him. He shouted: “Who the devil started those engines!”
    The agonizing acceleration continued; his feet dragged with awful exertion, as he fumbled with the nearest audioscope, and punched the engine-room number. The picture that flooded onto the screen brought a deep bellow to his lips:
    “It’s pussy! He’s in the engine room—and we’re heading straight out into space.”
    The screen went black even as he spoke, and he could see no more.
    
    It was Morton who first staggered across the salon floor to the supply room where the spacesuits were kept. After fumbling almost blindly
    into his own suit, he cut the effects of the body-torturing acceleration, and brought suits to the semiconscious men on the floor. In a few moments, other men were assisting him; and then it was only a matter of minutes before everybody was clad in metalite, with anti-acceleration motors running at half power.
    It was Morton then who, after first looking into the cage, opened the door and stood, silent as the others crowded about him, to stare at the gaping hole in the rear wall. The hole was a frightful thing of jagged edges and horribly bent metal, and it opened upon another corridor.
    “I’ll swear,” whispered Pennons, “that it’s impossible. The ten-ton hammer in the machine shops couldn’t more than dent four inches of micro with one blow—and we only heard one. It would take at least a minute for an atomic disintegrator to do the job. Morton, this is a super-being.”
    Morton saw that Smith was examining the break in the wall. The biologist looked up. “If only Breckinridge weren’t dead! We need a metallurgist to explain this. Look!”
    He touched the broken edge of the metal. A piece crumbled in his finger and slithered away in a fine shower of dust to the floor. Morton noticed for the first time that there was a little pile of metallic debris and dust.
    “You’ve hit it.” Morton nodded. “No miracle of strength here. The monster merely used his special powers to interfere with the electronic tensions holding the metal together. That would account, too, for the drain on the telefluor power cable that Pennons noticed. The thing used the power with his body as a transforming medium, smashed through the wall, ran down the corridor to the elevator’ shaft, and so down to the engine room.”
    “In the meantime, commander,” Kent said quietly, “we are faced with a super-being in control of the ship, completely dominating the engine room and its almost unlimited power, and in possession of the best part of the machine shops.”
    Morton felt the silence, while the men pondered the chemist’s words. Their anxiety was a tangible thing that lay heavily upon their faces; in every expression was the growing realization that here was the ultimate situation in their lives; their very existence was at stake and perhaps much more. Morton voiced the thought in everybody’s mind:
    “Suppose he wins. He’s utterly ruthless, and he probably sees galactic power within his grasp.”
    “Kent is wrong,” barked the chief navigator. “The thing doesn’t dominate the engine room. We’ve still got the control room, and that gives us first control of all the machines. You fellows may not know the mechanical set-up we have; but, though he ~an eventually disconnect us, we can cut off all the switches in the engine room now. Commander, why didn’t you just shut off the power instead of putting us into spacesuits? At the very least you could have adjusted the ship to the acceleration.”
    “For two reasons,” Morton answered. “Individually, we’re safer within the force fields of our spacesuits. And we can’t afford to give up our advantages in panicky moves.”
    “Advantages! What other advantages have we got?”
    “We know things about him,” Morton replied. “An right now, we’re going to make a test. Pennons, detail five men to e ch of the four approaches to the engine room. Take atomic disinte ators to blast through the big doors. They’re all shut, I noticed. He’s locked himself in.
    “Selenski, you go up to the control room and shut off everything except the drive engines. Gear them to the master switch, and shut them off all at once. One thing, though—leave the acceleration on full blast. No anti-acceleration must be applied to the ship. Understand?”
    “Aye, sir!” The pilot saluted.
    “And report to me through the communicators if any of the machines start to run again.” He faced the men. “I’m going to lead the main approach. Kent, you take No. a; Smith, No. 3, and Pennons, No. 4. We’re going to find out right now if we’re dealing with unlimited science, or a creature limited like the rest of us. I’ll bet on the second possibility.”
    
    Morton had an empty sense of walking endlessly, as he moved, a giant of a man in his transparent space armor, along the glistening metal tube that was the main corridor of the engine-room floor. Reason told him the creature had already shown feet of clay, yet the feeling that here was an invincible being persisted.
    He spoke into the communicator: “It’s no use trying to sneak up on him. He can probably ‘hear a pin drop. So just wheel up your units. He hasn’t been in that engine room long enough to do anything.
    “As I’ve said, this is largely a test attack. In the first place, we could never forgive ourselves if we didn’t try to conquer him now, before he’s had time to prepare against us. But, aside from the possibility that we can destroy him immediately, I have a theory.
    “The idea goes something like this: Those doors are built to withstand accidental atomic explosions, and it will take fifteen minutes for the atomic disintegrators to smash them. During that period the monster will have no power. True, the drive will be on, but that’s straight atomic explosion. My theory is, he can’t touch stuff like that; and in a few minutes you’ll see what I mean—I hope.”
    His voice was suddenly crisp: “Ready, Selenski?”
    “Aye, ready.”
    “Then cut the master switch.”
    The corridor—the whole ship, Morton knew—was abruptly plunged into darkness. Morton clicked on the dazzling light of his spacesuit; the other men did the same, their faces pale and drawn.
    “Blast!” Morton barked into his communicator.
    The mobile units throbbed; and then pure atomic flame ravened out and poured upon the hard metal of the door. The first molten droplet rolled reluctantly, not down, but up the door. The second was more normal. It followed a shaky downward course. The third rolled sideways—for this was pure force, not subject to gravitation. Other drops followed until a dozen streams trickled sedately yet unevenly in every direction—streams of hellish, sparkling fire, bright as fairy gems, alive with the coruscating fury of atoms suddenly tortured, and running blindly, crazy with pain.
    The minutes ate at time like a slow acid. At last Morton asked huskily:
    “Selenski?”
    “Nothing yet, commander.”
    Morton half whispered: “But he must be doing something. He can’t be just waiting in there like a cornered rat. Selenski?”
    “Nothing, commander.”
    Seven minutes, eight minutes, then twelve.
    “Commander!” It was Selenski’s voice, taut. “He’s got the electric dynamo running.”
    Morton drew a deep breath, and heard one of his men say:
    “That’s funny. We can’t get any deeper. Boss, take a look at this.”
    Morton looked. The little scintillating streams had frozen rigid. The ferocity of the disintegrators vented in vain against metal grown suddenly invulnerable.
    Morton sighed. “Our test is over. Leave two men guarding every corridor. The others come up to the control room.”
    
    He seated himself a few minutes later before the massive control keyboard. “So far as I’m concerned the test was a success. We know
    that of all the machines in the engine room, the most important to the monster was the electric dynamo. He must have worked in a frenzy of terror while we were at the doors.”
    “Of course, it’s easy to see what he did,” Penrions said. “Once he had the power he increased the electronic tensions of the door to their ultimate.”
    “The main thing is this,” Smith chimed in. “He works with vibrations only so far as his special powers are concerned, and the energy must come from outside himself. Atomic energy in its pure form, not being vibration, he can’t handle any differently than we can.”
    Kent said glumly: “The main point in my à’pinion is that he stopped us cold. What’s the good of knowing that his, control over vibrations did it? If we can’t break through those doors with our atomic disintegrators, we’re finished.”
    Morton shook his head. “Not finished—but we’ll have to do some planning. First, though, I’ll start these engines. It’ll be harder for him to get control of them when they’re running.”
    He pulled the master switch back into place with a jerk. There was a hum, as scores of machines leaped into violent life in the engine room a hundred feet below. The noises sank to a steady vibration of throbbing power.
    Three hours later, Morton paced up and down before the men gathered in the salon. His dark hair was uncombed; the space pallor of his strong face emphasized rather than detracted from the out-thrust aggressiveness of his jaw. When he spoke, his deep voice was crisp to the point of sharpness:
    “To make sure that our plans are fully co-ordinated, I’m going to ask each expert in turn to outline his part in the overpowering of this creature. Pennons first!”
    Pennons stood up briskly. He was not a big man, Morton thought, yet he looked big, perhaps because of his air of authority. This man knew engines, and the history of engines. Morton had heard him trace a machine through its evolution from a simple toy to the highly complicated modern instrument. He had studied machine development on a hundred planets; and there was literally nothing fundamental that he didn’t know about mechanics. It was almost weird to hear Pennons, who could have spoken for a thousand hours and still only have touched upon his subject, say with absurd brevity:
    “We’ve set up a relay in the control room to start and stop every engine rhythmically. The trip lever will work a hundred times a second, and the effect will be to create vibrations of every description.
    There is just a possibility that one or more of the machines will burst, on the principle of soldiers crossing a bridge in step—you’ve heard that old story, no doubt—but in my opinion there is no real danger of a break of that tough metal. The main purpose is simply to interfere with the interference of the creature, and smash through the doors.”
    “Gourlay next!” barked Morton.
    Gourlay climbed lazily to his feet. He looked sleepy, as if he was somewhat bored by the whole proceedings, yet Morton knew he loved people to think him lazy, a good-for-nothing slouch, who spent his days in slumber and his nights catching forty winks. His title was chief communication engineer, but his knowledge extended to every vibration field; and he was probably, with the possible exception of Kent, the fastest thinker on the ship. His voice drawled out, and— Morton noted—the very deliberate assurance of it had a soothing effect on the men—anxious faces relaxed, bodies leaned back more restfully:
    “Once inside,” Gourlay said, “we’ve rigged up vibration screens of pure force that should stop nearly everything he’s got on the ball. They work on the principle of reflection, so that everything he sends will be reflected back to him. In addition, we’ve got plenty of spare electric energy that we’ll just feed him from mobile copper cups. There must be a limit to his capacity for handling power with those insulated nerves of his.”
    “Selenski!” called Morton.
    The chief pilot was already standing, as if he had anticipated Morton’s call. And that, Morton reflected, was the man. His nerves had that rocklike steadiness which is the first requirement of the master controller of a great ship’s movements; yet that very steadiness seemed to rest on dynamite ready to explode at its owner’s volition. He was not a man of great learning, but he “reacted” to stimuli so fast that he always seemed to be anticipating.
    “The impression I’ve received of the plan is that it must be cumulative. Just when the creature thinks that he can’t stand any more, another thing happens to add to his trouble and confusion. When the uproar’s at its height, I’m supposed to cut in the anti-accelerators. The commander thinks with Gunlie Lester that these creatures will know nothing about anti-acceleration. It’s a development, pure and simple, of the science of interstellar flight, and couldn’t have been developed in any other way. We think when the creature feels the
    first effects of the anti-acceleration—you all remember the caved-in feeling you had the first month—it won’t know what to think or do.”
    
    “Korita next.”
    “I can only offer you encouragement,” said the archeologist, “on the basis of my theory that the monster has all the characteristics of a criminal of the early ages of any civilization, complicated by an apparent reversion to primitiveness. The suggestion has been made by Smith that his knowledge of science is puzzlinNg~ and could only mean that we are dealing with an actual inhabitant, n6~ a descendant of the inhabitants of the dead city we visited. This woW~ ascribe a virtual immortality to our enemy, a possibility which is home out by his ability to breathe both oxygen and chlorine-or neither—but even that makes no difference. He comes from a certain age in his civilization; and he has sunk so low that his ideas are mostly memories of that age.
    “In spite of all the powers of his body, he lost his head in the elevator the first morning, until he remembered. He placed himself in such a position that he was forced to reveal his special powers against vibrations. He bungled the mass murders a few hours ago. In fact, his whole record is one of the iow cunning of the primitive, egotistical mind which has little or no conception of the vast organization with which it is confronted.
    “He is like the ancient German soldier who felt superior to the elderly Roman scholar, yet the latter was part of a mighty civilization of which the Germans of that day stood in awe.
    “Yotli may suggest that the sack of Rome by the Germans in later years defeats my argument; however, modern historians agree that the ‘sack’ was an historical accident, and not history in the true sense of the word. The movement of the ‘Sea-peoples’ which set in against the Egyptian civilization from 1400 B. C. succeeded only as regards the Cretan island-realm—their mighty expeditions against the Libyan and Phoenician coasts, with the accompaniment of viking fleets, failed as those of the Huns failed against the Chinese Empire. Rome would have been abandoned in any event. Ancient, glorious Samarra was desolate by the tenth century; Pataliputra, Asoka’s great capital, was an immense and completely uninhabited waste of houses when the Chinese traveler Hsinan-tang visited it about A. D. 635.
    “We have, then, a primitive, and that primitive is now far out in space, completely outside of his natural habitat. I say, let’s go in and win.”
    One of the men grumbled, as Korita finished: “You can talk about the sack of Rome being an accident, and about this fellow being a primitive, but the facts are facts. It looks to me as if Rome is about to fall again; and it won’t be no primitive that did it, either. This guy’s got plenty of what it takes.”
    Morton smiled grimly at the man, a member of the crew. “We’ll see about that—right now!”
    
    In the blazing brilliance of the gigantic machine shop, Coeurl slaved. The forty-foot, cigar-shaped spaceship was nearly finished. With a grunt of effort, he completed the laborious installation of the drive engines, and paused to survey his craft.
    Its interior, visible through the one aperture in the outer wall, was pitifully small. There was literally room for nothing but the engines
    —and a narrow space for himself.
    He plunged frantically back to work as he heard the approach of the men, and the sudden change in the tempest-like thunder of the engines—a rhythmical off-and-on hum, shriller in tone, sharper, more nerve-racking than the deep-throated, steady throb that had preceded it. Suddenly, there were the atomic disintegrators again at the massive outer doors.
    He fought them off, but never wavered from his task. Every mighty muscle of his powerful body strained as he carried great loads of tools, machines and instruments, and dumped them into the bottom of his makeshift ship. There was no time to fit anything into place, no time for anything—no time—no time.
    The thought pounded at his reason. He felt strangely weary for the first time in his long and vigorous existence. With a last, tortured heave, he jerked the gigantic sheet of metal into the gaping aperture of the ship—and stood there for a terrible minute, balancing it precariously.
    He knew the doors were going down. Half a dozen disintegators concentrating on one point were irresistibly, though slowly, eating away the remaining inches. With a gasp, he released his mind from the doors and concentrated every ounce of his mind on the yard-thick outer wall, toward which the blunt nose of his ship was pointing.
    His body cringed from the surging power that flowed from the electric dynamo through his ear tendrils into that resisting wall. The whole inside of him felt on fire, and he knew that he was dangerously close to carrying his ultimate load.
    And still he stood there, shuddering with the awful pain, holding
    the unfastened metal plate with hard-clenched tentacles. His massive head pointed as in dread fascination at that bitterly hard wall.
    He heard one of the engine-room doors crash inward. Men shouted; disintegrators rolled forward, their raging power unchecked. Coeurl heard the floor of the engine room hiss in protest, as those beams of atomic energy tore everything in their path to bits. Jh~ machines rolled closer; cautious footsteps sounded -behind---thth~. In a minute they would be at the flimsy doors separating the engine room from the machine shop.
    Suddenly, Coeurl was satisfied. With a snarl of hate, a vindictive glow of feral eyes, he ducked into his little craft, and pulled the metal plate down into place as if it was a hatchway.
    His ear tendrils hummed, as he softened the edges of the surround. ing metal. In an instant, the plate was more than welded—it was part of his ship, a seamless, rivetless part of a whole that was solid opaque metal except for two transparent areas, one in the front, one in the rear.
    His tentacle embraced the power drive with almost sensuous tenderness. There was a forward surge of his, fragile machine, straight at the great outer wall of the machine shops. The nose of the forty-foot craft touched—and the wall dissolved in a glittering shower of dust.
    Coeurl felt the barest retarding movement; and then he kicked the nose of the machine out into the cold of space, twisted it about, and headed back in the direction from which the big ship had been coming all these hours.
    Men in space armor stood in the jagged hole that yawned in the lower reaches of the gigantic globe. The men and the great ship grew smaller. Then the men were gone; and there was only the ship with its blaze of a thousand blurring portholes. The ball shrank incredibly, too small now for individual portholes to be visible.
    Almost straight ahead, Coeurl saw a tiny, dim, ‘reddish ball—his own sun, he realized. He headed toward it at full speed. There were caves where he could hide and with other coeurls build secretly a spaceship in which they could reach other planets safely—now that he knew how.
    His body ached from the agony of acceleration, yet he dared not let up for a single instant. He glanced back, half in terror. The globe was still there, a tiny dot of light in the immense blackness of space. Suddenly it twinkled and was gone.
    For a brief moment, he had the empty, frightened impression that just before it disappeared, it moved. But he could see nothing. He
    could not, escape the belief that they had shut off all their lights, and were sneaking up on him in the darkness. Worried and uncertain, he looked through the forward transparent plate.
    
    A tremor of dismay shot through him. The dim red sun toward which he was heading was not growing larger. It was becoming smaller by the instant, and it grew visibly tinier during the next five minutes, became a pale-red dot in the sky—and vanished like the ship.
    Fear came then, a blinding surge of it, that swept through his being and left him chilled with the sense of the unknown. For minutes, he stared frantically into the space ahead, searching for some landmark. But only the remote stars glimmered there, unwinking points against a velvet background of unfathomable distance.
    Wait! One of the points was growing larger. With every muscle and nerve tensed, Coeurl watched the point becoming a dot, a round’ ball of light—red light. Bigger, bigger, it grew. Suddenly, the red light shimmered and turned white—and there, before him, was the great globe of the spaceship, lights glaring from every porthole, the very ship which a few minutes before he had watched vanish behind him.
    Something happened to Coeurl in that moment. His brain was spinning like a flywheel, faster, faster, more incoherently. Suddenly, the wheel flew apart into a million aching fragments. His eyes almost started from their sockets as, like a maddened animal, he raged in his small quarters.
    His tentacles clutched at precious instruments and flung them insensately; his paws smashed in fury at the very walls of his ship. Finally, in a brief flash of sanity, he knew that he couldn’t face the inevitable fire of atomic disintegrators.
    It was a simple thing to create the violent disorganization that freed every drop of id from his vital organs.
    They found him lying dead in a little pool of phosphorus.
    “Poor pussy,” said Morton. “I wonder what he thought when he saw us appear ahead of him, after his own sun disappeared. Knowing nothing of anti-accelerators, he couldn’t know that we could stop short in space, whereas it would take him more than three hours to decelerate; and in the meantime he’d be drawing farther and farther away from where he wanted to go. He couldn’t know that by stopping, we flashed past him at millions of miles a second. Of course, he, didn’t have a chance once he left our ship. The whole world must have seemed topsy-turvy.”
    “Never mind the sympathy,” he heard Kent say behind him. “We’ve got a job—to kill every cat in that miserable world.”
    Korita murmured softly: “That should be simiipIç~ They are but primitives; and we have merely to sit down, and the~’wiJ1sorne to us, cunningly expecting to delude us.”
    Smith snapped: “You fellows make me sick! Pussy was the toughest nut we ever had to crack. He had everything he needed to defeat us—”
    Morton smiled as Korita interrupted blandly: “Exactly, my dear Smith, except that he reacted according to the biological impulses of his type. His defeat was already foreshadowed when we unerringly analyzed him as a criminal from a certain era of his civilization.
    “It was history, honorable Mr. Smith, our knowledge of history that defeated him,” said the Japanese archeologist, reverting to the ancient politeness of his race.