So long had the voice been going on, that only vaguely at first was McReady aware that something seemed missing. Lying as he was, just across the narrow room from the corridor leading to Cosmos House, Kinner's voice had reached him fairly clearly, despite the sound accompaniment of the pictures. It struck him abruptly that it had stopped.

  "Dutton, cut that sound," McReady called as he sat up abruptly. The pictures flickered a moment, soundless and strangely futile in the sudden, deep silence. The rising wind on the surface above bubbled melancholy tears of sound down the stove pipes. "Kinner's stopped," McReady said softly.

  "For God's sake start that sound then; he may have stopped to listen," Norris snapped.

  McReady rose and went down the corridor. Barclay and Van Wall left their places at the far end of the room to follow him. The flickers bulged and twisted on the back of Barclay's gray underwear as he crossed the still-functioning beam of the projector. Dutton snapped on the lights, and the pictures vanished.

  Norris stood at the door as McReady had asked. Garry sat down quietly in the bunk nearest the door, forcing Clark to make room for him. Most of the others had stayed exactly where they were. Only Connant walked slowly up and down the room, in steady, unvarying rhythm.

  "If you're going to do that, Connant," Clark spat, "we can get along without you altogether, whether you're human or not. Will you stop that damned rhythm?"

  "Sorry." The physicist sat down in a bunk, and watched his toes thoughtfully. It was almost five minutes, five ages, while the wind made the only sound, before McReady appeared at the door.

  "Well," he announced, "haven't got enough grief here already. Somebody's tried to help us out. Kinner has a knife in his throat, which was why he stopped singing, probably. We've got monsters, madmen and murderers. Any more 'M's' you can think of, Caldwell? If there are, we'll probably have 'em before long."

  XIII

  "Is Blair loose?" someone asked.

  "Blair is not loose. Or he flew in. If there's any doubt about where our gentle helper came from—this may clear it up." Van Wall held a foot-long, thin-bladed knife in a cloth. The wooden handle was half burnt, charred with the peculiar pattern of the top of the galley stove.

  Clark stared at it. "I did that this afternoon. I forgot the damn thing and left it on the stove."

  Van Wall nodded. "I smelled it, if you remember. I knew the knife came from the galley."

  "I wonder," said Benning, looking around at the party warily, "how many more monsters have we? If somebody could slip out of his place, go back of the screen to the galley and then down to the Cosmos House and back—he did come back, didn't he? Yes—everybody's here. Well, if one of the gang could do all that—"

  "Maybe a monster did it," Garry suggested quietly.

  "There's that possibility."

  "The monster, as you pointed out today, has only men left to imitate. Would he decrease his—supply, shall we say?" Van Wall pointed out. "No, we just have a plain, ordinary louse, a murderer to deal with. Ordinarily we'd call him an 'inhuman murderer' I suppose, but we have to distinguish now. We have inhuman murderers, and now we have human murderers. Or one at least."

  "There's one less human," Norris said softly. "Maybe the monsters have the balance of power now."

  "Never mind that," McReady sighed and turned to Barclay. "Bar, will you get your electric gadget? I'm going to make certain—"

  Barclay turned down the corridor to get the pronged electrocuter, while McReady and Van Wall went back toward Cosmos House. Barclay followed them in some thirty seconds.

  The corridor to Cosmos House twisted, as did nearly all corridors in Big Magnet, and Norris stood at the entrance again. But they heard, rather muffled, McReady's sudden shout. There was a savage flurry of blows, dull ch-thunk, shluff sounds. "Bar—Bar—" And a curious, savage mewing scream, silenced before even quick-moving Norris had reached the bend.

  Kinner—or what had been Kinner—lay on the floor, cut half in two by the great knife McReady had had. The meteorologist stood against the wall, the knife dripping red in his hand. Van Wall was stirring vaguely on the floor, moaning, his hand half-consciously rubbing at his jaw. Barclay, an unutterably savage gleam in his eyes, was methodically leaning on the pronged weapon in his hand, jabbing—jabbing, jabbing.

  Kinner's arms had developed a queer, scaly fur, and the flesh had twisted. The fingers had shortened, the hand rounded, the fingernails become three-inch long things of dull red horn, keened to steel-hard, razor-sharp talons.

  McReady raised his head, looked at the knife in his hand and dropped it. "Well, whoever did it can speak up now. He was an inhuman murderer at that—in that he murdered an inhuman. I swear by all that's holy, Kinner was a lifeless corpse on the floor here when we arrived. But when It found we were going to jab It with the power—It changed."

  Norris stared unsteadily. "Oh, Lord, those things can act. Ye gods—sitting in here for hours, mouthing prayers to a God it hated! Shouting hymns in a cracked voice—hymns about a Church it never knew. Driving us mad with its ceaseless howling—

  "Well. Speak up, whoever did it. You didn't know it, but you did the camp a favor. And I want to know how in blazes you got out of the room without anyone seeing you. It might help in guarding ourselves."

  "His screaming—his singing. Even the sound projector couldn't drown it." Clark shivered. "It was a monster."

  "Oh," said Van Wall in sudden comprehension. "You were sitting right next to the door, weren't you? And almost behind the projection screen already."

  Clark nodded dumbly. "He—it's quiet now. It's a dead—Mac, your test's no damn good. It was dead anyway, monster or man, it was dead."

  McReady chuckled softly. "Boys, meet Clark, the only one we know is human! Meet Clark, the one who proves he's human by trying to commit murder—and failing. Will the rest of you please refrain from trying to prove you're human for a while? I think we may have another test."

  "A test!" Connant snapped joyfully, then his face sagged in disappointment. "I suppose it's another either-way-you-want-it."

  "No," said McReady steadily. "Look sharp and be careful. Come into the Ad Building. Barclay, bring your electrocuter. And somebody—Dutton—stand with Barclay to make sure he does it. Watch every neighbor, for by the Hell these monsters came from, I've got something, and they know it. They're going to get dangerous!"

  The group tensed abruptly. An air of crushing menace entered into every man's body, sharply they looked at each other. More keenly than ever before—is that man next to me an inhuman monster?

  "What is it?" Garry asked, as they stood again in the main room. "How long will it take?"

  "I don't know, exactly," said McReady, his voice brittle with angry determination. "But I know it will work, and no two ways about it. It depends on a basic quality of the monsters, not on us. 'Kinner' just convinced me." He stood heavy and solid in bronzed immobility, completely sure of himself again at last.

  "This," said Barclay, hefting the wooden-handled weapon tipped with its two sharp-pointed, charged conductors, "is going to be rather necessary, I take it. Is the power plant assured?"

  Dutton nodded sharply. "The automatic stoker bin is full. The gas power plant is on standby. Van Wall and I set it for the movie operation—and we've checked it over rather carefully several times, you know. Anything those wires touch, dies," he assured them grimly. "I know that."

  Dr. Copper stirred vaguely in his bunk, rubbed his eyes with fumbling hand. He sat up slowly, blinked his eyes blurred with sleep and drugs, widened with an unutterable horror of drug-ridden nightmares. "Garry," he mumbled, "Garry—listen. Selfish—from hell they came, and hellish shellfish—I mean self— Do I? What do I mean?" He sank back in his bunk, and snored softly.

  McReady looked at him thoughtfully. "We'll know presently," he nodded slowly. "But selfish is what you mean, all right. You may have thought of that, half sleeping, dreaming there. I didn't stop to think what dreams you might be having. But that's all right. Self
ish is the word. They must be, you see." He turned to the men in the cabin, tense, silent men staring with wolfish eyes each at his neighbor. "Selfish, and as Dr. Copper said—every part is a whole. Every piece is self-sufficient, an animal in itself.

  "That, and one other thing, tell the story. There's nothing mysterious about blood; it's just as normal a body tissue as a piece of muscle, or a piece of liver. But it hasn't so much connective tissue, though it has millions, billions of life-cells."

  McReady's great bronze beard ruffled in a grim smile. "This is satisfying, in a way. I'm pretty sure we humans still outnumber you—others. Others standing here. And we have what you, your other-world race, evidently doesn't. Not an imitated, but a bred-in-the-bone instinct, a driving, unquenchable fire that's genuine. We'll fight, fight with a ferocity you may attempt to imitate, but you'll never equal! We're human. We're real. You're imitations, false to the core of your every cell."

  "All right. It's a showdown now. You know. You, with your mind reading. You've lifted the idea from my brain. You can't do a thing about it.

  "Standing here—

  "Let it pass. Blood is tissue. They have to bleed; if they bleed when cut, then by Heaven, they're phoney from hell! If they don't bleed—then that blood, separated from them, is an individual—a newly formed individual in its own right, just as they—split, all of them, from one original—are individuals!

  "Get it, Van? See the answer, Bar?"

  Van Wall laughed very softly. "The blood—the blood will not obey. It's a new individual, with all the desire to protect its own life that the original—the main mass from which it was split—has. The blood will live—and try to crawl away from a hot needle, say!"

  McReady picked up the scalpel from the table. From the cabinet, he took a rack of test tubes, a tiny alcohol lamp, and a length of platinum wire set in a little glass rod. A smile of grim satisfaction rode his lips. For a moment he glanced up at those around him. Barclay and Dutton moved toward him slowly, the wooden-handled electric instrument alert.

  "Dutton," said McReady, "suppose you stand over by the splice there where you've connected that in. Just make sure no—thing pulls it loose."

  Dutton moved away. "Now, Van, suppose you be first on this."

  White-faced, Van Wall stepped forward. With a delicate precision, McReady cut a vein in the base of his thumb. Van Wall winced slightly, then held steady as a half inch of bright blood collected in the tube. McReady put the tube in the rack, gave Van Wall a bit of alum, and indicated the iodine bottle.

  Van Wall stood motionlessly watching. McReady heated the platinum wire in the alcohol lamp flame, then dipped it into the tube. It hissed softly. Five times he repeated the test. "Human, I'd say," McReady sighed, and straightened. "As yet, my theory hasn't been actually proven—but I have hopes. I have hopes.

  "Don't, by the way, get too interested in this. We have with us some unwelcome ones, no doubt. Van, will you relieve Barclay at the switch? Thanks. OK, Barclay, and may I say I hope you stay with us? You're a damned good guy."

  Barclay grinned uncertainly; winced under the keen edge of the scalpel. Presently, smiling widely, he retrieved his long-handled weapon.

  "Mr. Samuel Dutt—Bar!"

  The tensity was released in that second. Whatever of hell the monsters may have had within them, the men in that instant matched it. Barclay had no chance to move his weapon, as a score of men poured down on the thing that had seemed Dutton. It mewed, and spat, and tried to grow fangs—and was a hundred broken, torn pieces. Without knives, or any weapon save the brute-given strength of a staff of picked men, the thing was crushed, rent.

  Slowly they picked themselves up, their eyes smouldering, very quiet in their motions. A curious wrinkling of their lips betrayed a species of nervousness.

  Barclay went over with the electric weapon. Things smouldered and stank. The caustic acid Van Wall dropped on each spilled drop of blood gave off tickling, cough-provoking fumes.

  McReady grinned, his deep-set eyes alight and dancing. "Maybe," he said softly, "I underrated man's abilities when I said nothing human could have the ferocity in the eyes of that thing we found. I wish we could have the opportunity to treat in a more befitting manner these things. Something with boiling oil, or melted lead in it, or maybe slow roasting in the power boiler. When I think what a man Dutton was—

  "Never mind. My theory is confirmed by—by one who knew? Well, Van Wall and Barclay are proven. I think, then, that I'll try to show you what I already know. That I, too, am human." McReady swished the scalpel in absolute alcohol, burned it off the metal blade, and cut the base of his thumb expertly.

  Twenty seconds later he looked up from the desk at the waiting men. There were more grins out there now, friendly grins, yet withal, something else in the eyes.

  "Connant," McReady laughed softly, "was right. The huskies watching that thing in the corridor bend had nothing on you. Wonder why we think only the wolf blood has the right to ferocity? Maybe on spontaneous viciousness a wolf takes tops, but after these seven days—abandon all hope, ye wolves who enter here!

  "Maybe we can save time. Connant, would you step for—"

  Again Barclay was too slow. There were more grins, less tensity still, when Barclay and Van Wall finished their work.

  Garry spoke in a low, bitter voice. "Connant was one of the finest men we had here—and five minutes ago I'd have sworn he was a man. Those damnable things are more than imitation." Garry shuddered and sat back in his bunk.

  And thirty seconds later, Garry's blood shrank from the hot platinum wire, and struggled to escape the tube, struggled as frantically as a suddenly feral, red-eyed, dissolving imitation of Garry struggled to dodge the snake-tongue weapon Barclay advanced at him, white-faced and sweating. The Thing in the test tube screamed with a tiny, tinny voice as McReady dropped it into the glowing coal of the galley stove.

  XIV

  "The last of it?" Dr. Copper looked down from his bunk with bloodshot, saddened eyes. "Fourteen of them—"

  McReady nodded shortly. "In some ways—if only we could have permanently prevented their spreading—I'd like to have even the imitations back. Commander Garry—Connant—Dutton—Clark—"

  "Where are they taking those things?" Copper nodded to the stretcher Barclay and Norris were carrying out.

  "Outside. Outside on the ice, where they've got fifteen smashed crates, half a ton of coal, and presently will add ten gallons of kerosene. We've dumped acid on every spilled drop, every torn fragment. We're going to incinerate those."

  "Sounds like a good plan." Copper nodded wearily. "I wonder, you haven't said whether Blair—"

  McReady started. "We forgot him? We had so much else! I wonder—do you suppose we can cure him now?"

  "If—" began Dr. Copper, and stopped meaningly.

  McReady started a second time. "Even a madman. It imitated Kinner and his praying hysteria—" McReady turned toward Van Wall at the long table. "Van, we've got to make an expedition to Blair's shack."

  Van looked up sharply, the frown of worry faded for an instant in surprised remembrance. Then he rose, nodded. "Barclay better go along. He applied the lashings, and may figure how to get in without frightening Blair too much."

  Three quarters of an hour, through -37° cold, while the aurora curtain bellied overhead. The twilight was nearly twelve hours long, flaming in the north on snow like white, crystalline sand under their skis. A five-mile wind piled it in drift-lines pointing off to the northwest. Three quarters of an hour to reach the snow-buried shack. No smoke came from the little shack, and the men hastened.

  "Blair!" Barclay roared into the wind and when he was still a hundred yards away. "Blair!"

  "Shut up," said McReady softly. "And hurry. He may be trying a lone hike. If we have to go after him—no planes, the tractors disabled—"

  "Would a monster have the stamina a man has?"

  "A broken leg wouldn't stop it for more than a minute," McReady pointed out.

  Barclay
gasped suddenly and pointed aloft. Dim in the twilit sky, a winged thing circled in curves of indescribable grace and ease. Great white wings tipped gently, and the bird swept over them in silent curiosity. "Albatross—" Barclay said softly. "First of the season, and wandering way inland for some reason. If a monster's loose—"

  Norris bent down on the ice, and tore hurriedly at his heavy, windproof clothing. He straightened, his coat flapping open, a grim blue-metaled weapon in his hand. It roared a challenge to the white silence of Antarctica.

  The thing in the air screamed hoarsely. Its great wings worked frantically as a dozen feathers floated down from its tail. Norris fired again. The bird was moving swiftly now, but in an almost straight line of retreat. It screamed again, more feathers dropped, and with beating wings it soared behind a ridge of pressure ice, to vanish.

  Norris hurried after the others. "It won't come back," he panted.

  Barclay cautioned him to silence, pointing. A curiously, fiercely blue light beat out from the cracks of the shack's door. A very low, soft humming sounded inside, a low, soft humming and a clink and clink of tools, the very sounds somehow bearing a message of frantic haste.

  McReady's face paled. "Lord help us if that thing has—" He grabbed Barclay's shoulder, and made snipping motions with his fingers, pointing toward the lacing of control cables that held the door.

  Barclay drew the wire cutters from his pocket, and kneeled soundlessly at the door. The snap and twang of cut wires made an unbearable racket in the utter quiet of the Antarctic hush. There was only that strange, sweetly soft hum from within the shack, and the queerly, hecticly clipped clicking and rattling of tools to drown their noises.

  McReady peered through a crack in the door. His breath sucked in huskily and his great fingers clamped cruelly on Barclay's shoulder. The meteorologist backed down. "It isn't," he explained very softly, "Blair. It's kneeling on something on the bunk—something that keeps lifting. Whatever it's working on is a thing like a knapsack—and it lifts."