And everywhere within this jungle a wraith-like mist was forming at this dawn hour. From a thousand miles around, the devils were mustering for their prey, agglutinating, in order that the meal of one might become the meal of all.
Wisps of protoplasmic fog were stealing out through the trees, changing shape every instant, but always advancing: now presenting the appearance of an aligned regiment of huge, shadowy men, now nothing but a wall of semi-solid vapor. And still, with eyeballs straining in their sockets, the victims watched.
Suddenly all were seized with the same spasm of mad terror. Again they hurled themselves against the electrified lines, and again they were hurled back, masses of boys and girls tumbling against one another, and screaming in one wail that, could it have been heard in Washington, would have driven all insane. Again and again, till they fell back, panting and helpless. And solidly the wall of devils was creeping up from every side.
Ruth Deane, one of the few who had themselves in control, lay some distance back from the electrified field. From the moment when she was surprised in her apartment by the Government representatives, she had known that there was no hope of escape.
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She had slipped the ring off her finger, snapped the plastic metal, and attached it to a thread torn from her dress. She had managed to insert it in the door, hoping that Kay would find it. It would serve as a last message of love to him.
Every removal of a selected victim was in the nature of a kidnapping. At dead of night her apartment had been opened. She had been ordered to dress. Nothing could be written, no arrangements made. She was already considered as one dead.
She had been hurried out of the upper entrance to the monorail, which conveyed her in a special car to the landing station. A few minutes later she had been on her way to join the camp of other victims, a hundred miles away. Within two hours she was on her way southward.
Stunned by the tragedy, none of the victims had made much of an outcry. They had been given water by the airship police. No food for boys and girls already dead. Days and nights had passed, and now she was here, faint from exhaustion, and wondering at the despair shown by those others. What difference would it make in half an hour? Besides, that Government pamphlet had insisted that this death was painless!
But an immense longing to see Kay once more came over her. There had been a time when she thought she loved Cliff; then Kay had come into her life, and she had known that other affair was folly. She had never told Kay of the bitter scene between Cliff and herself, how he had raved against Kay and sworn to win her in the end.
Cliff had calmed down and apologized, and Ruth had never seen him again. She wished he had not taken it like that. But above all she wanted to see Kay, just to say good-by.
And she tried to send out her whole heart to him in an unspoken message of love that would surely somehow convey itself to him.
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The wall of devils was creeping up on every side, slowly, lethargically. The monsters took their time, because they knew they were invincible. The sobs and shrieks had died away. Collected into a mass almost as rigid as that of the Earth Giants, the victims waited, palsied as a rabbit that awaits the approach of the serpent.
A humming overhead. An airplane shooting down from the sky. Rescue? No. Only a solitary pilot, armed with a woodsman's ax.
Kay drifted down, touched ground, leaped to his feet. Chance had brought him within five hundred yards of where Ruth was standing. But Ruth had known who that lone flyer must be. She broke through the throng; she rushed to meet him. Her arms were around him.
"Kay, darling Kay!"
"Ruth, dearest!"
"I knew you'd come."
"I've come to die beside you!"
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It was perhaps odd that it did not enter the head of either as a possibility that Kay should simply place Ruth in the plane and fly away with here to safety. Had the thought occurred to Kay, he might have been tempted. But such black treachery was something inconceivable by either. So long as the Federation remained, so long as man moved in an organized society, he was bound to his fellows, to fight, suffer, and die with them.
"Stand by me, Ruth. We're going down fighting."
They moved back toward the throng, which, momentarily stirred to hope by Kay's appearance, had fallen into the former apathy of despair. And now the monsters were beginning to enter the electrified zone at one point. As they passed the line of posts, the high tension current made their bodies luminous, but it had no appreciable effect upon them. They moved on, inevitably.
A score or so of semi-human forms, agglutinated into a mass, and yet individually discernible. They bore down slowly upon the crowd of victims, who pressed backward as they advanced. On the other sides, though they almost encircled the field of death, the monsters were making no maneuvers to entrap their prey. Their sluggish minds were incapable of conceiving anything of the kind. But for the electrified zone, the great majority of the victims could have effected their escape. The monsters were simply pressing forward to their meal; they did not interpret its capture in terms of strategy at all.
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A new frenzy of horror seized the crowd. They fled, struggling back until the foremost in flight reached the other side of Golgotha, to be repulsed by the electrified zone there. They fell in tumbled heaps. Appalling shrieks rang through the air.
Another line of the monsters was seeping forward, converging toward the first. As the two lines met, they coalesced into a wall of protoplasm, a thousand feet in length by a hundred high. A wall out of which leered phantasmal faces, like those in a frieze.
Kay stood alone, his arm around Ruth. To follow the flying mob would but prolong the agony. He raised the ax. He looked into the girl's eyes. She understood, and nodded.
One last embrace, one kiss, and Kay placed her behind him. He sprang forward, shouting, and plunged into the very heart of the wall.
And Ruth, watching with eyes dilated with horror, saw it yield with a sucking sound, and saw Kay disappear within it.
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She saw the hideous mass fold itself upon him, and a hundred extruded tentacles wave in the air as they blindly grappled for him. And then Kay had broken through, and was hewing madly with great sweeps of the ax that slashed great streamers of the amorphous tissue from the wall of protoplasm.
It recoiled and then folded once more, and Kay's mighty sweeps were slashing phantom limbs from phantom bodies; and lopping off tentacles that curled and coiled, and put forth caricatures of hands and fingers, and then, uniting with other slashed off tentacles, began to mould themselves into the likeness of dwarf monsters. Kay's struggle was like that of a man fighting a fog, for again and again he broke through the wall, and always it reunited.
And behind it another wall of protoplasm was pressing forward, and on another side a wall was drifting up. As Kay stopped, panting, and momentarily free, Ruth saw that they were almost encircled.
She saw the nature of that fight. Inevitably that wall would close about them; and, though the bones of last year's victims had been gathered up and carried away by the Federation, she guessed what would occur.
She ran to Kay and dragged him back through the closing gap. It met behind them, and again they stood face to face with the devils. Only this time, instead of a wall of protoplasm, it was a veritable mountain that confronted them, and there could be no more breaking through.
Kay thought afterward that the one touch of absolute horror was that the reforming monsters, the young ones growing visibly before his eyes, had the gamboling instinct of young lambs or other creatures. They were much more lively than the parent creatures.
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By this time perhaps a third of the space within the electrified lines had been occupied by the devils. The wall was slowly and sluggishly advancing, and a fresh infiltration was drifting in on another side. As the victims were pressed closer and closer together in their flight, half of them seemed to go insane. They raced to and fro, laughing and screaming, flinging their arms aloft in extravagant gestures. One young fellow, rushing across the ground, hurled himself like a bolt from a catapult into the heart of the grisly mass, which opened and received him.
There was a struggle, a convulsion; then the mass moved on.
Kay wiped his ax. He stood beside Ruth, gathering strength and breath to fight again. What else was there to do?
Suddenly a humming sound came to his ears. Still some little distance from the monsters, he glanced back. The victims were shouting, staring upward. Over the tops of the jungle trees Kay saw a second airplane flying toward them, a larger one than the plane which he had flown.
It opened its helicopter wings and drifted downward. Kay saw a single pilot, and, in the baggage compartment something that at first he did not recognize. Then he recognized both this object and the aviator.
"It's Cliff," he whispered hoarsely. "He's brought the top!"
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The crowd was milling about Cliff as he stepped out of the plane. Kay broke through their midst, shouting to them to clear a space, that it was their chance, their only chance. They heard him and obeyed. And Cliff and Kay clasped hands, and there was Ruth beside them.
The two men carried the top out of the baggage compartment and set it up.
"Thank God I came in time," Cliff hissed. "How long have we got, Kay?"
"Five minutes, I think," Kay answered, glancing at the oncoming wall. "They're slow. Will it work, Cliff? God, when I found you'd gone last night – "