James Quade stepped through, automatic in hand. He was fresh from the light inside, and he could not see well. He was quite unconscious of what was oozing down on him from above, of the flabby heap that was carefully stretching down for him. He peered into the gloom, looking for the three he had deserted, and all the time an arm from the ma.s.s above crept nearer. Sue Guinness"s nerves suddenly gave, and she shrieked; but Quade"s ears were deaf from the borer"s thunder, and he did not hear her.
It was when he lifted one foot back into the sphere--probably to get out the searchlight--that he felt the thing"s presence. He looked up--and a strange sound came from him. For seconds he apparently could not move, stark fear rooting him to the ground, the gun limp in his hand.
Then a surge ran through the mound of flesh, and the arm, a pseudopod, reached more rapidly for him.
It stung Quade into action. He leaped back, brought up his automatic, and fired at the thing once; then three times more. He, and each one of the others, saw four bullets thud into the heap of pallid matter and heard them clang on the metal of the sphere beneath. They had gone right through its flesh--but they showed no slightest effect!
Quade was evidently unwilling to leave the sphere. Jerking his arm up he brought his trigger finger back again. A burst of three more shots barked through the cavern, echoing and re-echoing. The man screamed an inarticulate oath as he saw how useless his bullets were, and hurled the empty gun at the monster--which was down on the floor now, and bunching its sluggish body together.
The automatic went right into it. They could all see it there, in the middle of the amorphous body, while the creature stopped, as if determining whether or not it was food. Quade screwed his courage together in the pause, and tried to dodge past to the door of the sphere; but the monster was alert: another pseudopod sprang out from its shapeless flesh, sending him back on his heels.
The feeler had all but touched Quade, and with the closeness of his escape, the remnants of his courage gave. He yelled, and turned and ran.
He ran straight for the three who watched from the tunnel mouth, and the mound of shapeless jelly came fast on his trail. It came in surging rolls, like thick fluid oozing forward; it would have been hard to measure its size, for each moment it changed. The only impression the four humans had was that of a wave of half-transparent matter that one instant was a sticky ball of viscid flesh and the next a rapidly advancing crescent whose horns reached far out on each flank to cut off retreat.
By instinct Phil jerked Sue around and yelled at the professor to run, for the old man seemed to be frozen into an att.i.tude of fearful interest. Bullets would not stop the thing--could anything? Holmes wondered. He could visualize all too easily the death they would meet if that shapeless, naked protoplasmic ma.s.s overtook and flowed over them....
But he wasted no time with such thoughts. They ran, all three, into the dark tunnel.
Quade caught up with them quickly. Personal enmity was suspended before this common peril. They could not run at full speed, for a mult.i.tude of obstacles hindered them. Tortuous ridges of rock lay directly across their path, formations that had been whipped in some mad, eon-old convulsion and then, through the ages, remained frozen into their present distortion; black pits gaped suddenly before them; half-seen stalagmites, whose crystalline edges were razor-sharp, tore through to their flesh. Haste was perilous where every moment they might stumble into an unseen cleft and go pitching into awful depths below. They were staking everything on the draft that blew steadily in their faces; Phil told himself desperately that it must lead to some opening--it must!
But what if the opening were a vertical, impa.s.sable tunnel? He would not think of that....
Old David Guinness tired fast, and was already lagging in the rear when Quade gasped hoa.r.s.ely: "Hurry! It"s close behind!"
Surging rapidly at a constant distance behind them, it came on. It was as fast as they were, and evidently untiring. It was in its own element; obstacles meant nothing to it. It oozed over the jagged ridges that took the humans precious moments to scramble past, and the speed of its weird progress seemed to increase as theirs faltered. It was a heartless ma.s.s driven inexorably by primal instinct towards the food that lay ahead. The dim phosph.o.r.escent illumination tinged its flabby tissues a weird white.
The pa.s.sage they stumbled through narrowed. Long irregular spears of stalact.i.tes hung from the unseen ceiling; others, the drippings of ages, p.r.o.nged up from the floor, shredding their clothes as they jarred into them. One moment they were clambering up-hill, slipping on the damp rock; the next they were sliding down into unprobed darkness, reckless of where they would land. They were aware only that the water-odorous draft was still in their faces, and the hungry mound of flesh behind....
"I can"t last much longer!" old Guinness"s winded voice gasped. "Best leave me behind. I--I might delay it!"
For answer, Phil went back, grabbed him by the arm and dragged his tired body forward. He was s.n.a.t.c.hing a glance behind to see how close the monster was, when Sue"s frightened voice reached him from ahead.
"There"s a wall here, Phil--and no way through!"
And then Holmes came to it. It barred the pa.s.sage, and was apparently unbroken. Yet the draft still came!
"Search for where the draft enters!" he yelled. "You take that side!" And he started feeling over the clammy, uneven surface, searching frantically for a cleft. It seemed to be hopeless. Quade stood staring back into the gloom, his eyes looking for what he knew was surging towards them. His face had gone sickly white, he was trembling as if with fever, and he sucked in air with long, racking gasps.
"Here! I have it!" cried the girl suddenly at her end of the wall. The other three ran over, and saw, just above her head, a narrow rift in the rock, barely wide enough to squirm through. "Into it!" Phil ordered tersely. He grasped her, raised her high, and she wormed through. Quade scrambled to get in next, but Holmes shoved him aside and boosted the old man through. Then he helped the other.
A second after he had swung himself up, a wave of whitish matter rolled up below, hungry pseudopods reaching for the food it knew was near. It began to trickle up the wall....
The crack was narrow and jagged; utterly black. Phil could hear Quade frantically worming himself ahead, and he wondered achingly if it would lead anywhere. Then a faint, clear voice from ahead rang out: "It"s opening up!"
Sue"s voice! Phil breathed more easily. The next moment Quade scrambled through; dim light came; and they were in another vast, ghostly-lit cavern.
The crack came out on its floor-level; Guinness was resting near, and his daughter had her hands on a large boulder of rock. "Let"s shove it against the hole!" she suggested to Phil. "It might stop it!"
"Good, Sue, good!" he exclaimed, and at once all four of them strained at the chunk, putting forth every bit of strength they had. The boulder stirred, rolled over, and thudded neatly in front of the crack, almost completely sealing it. There was only a cleft of five inches on one side.
But their expression of relief died in their throats. A tiny trickle of white appeared through the niche. The amorphous monster was compressing itself to a single stream, thin enough to squeeze through even that narrow s.p.a.ce.
They could not block it. They had nothing to attack it with. There was nothing to do but run.... And hope for a chance to double back....
As nearly as they could make out, this second cavern was as large as the first. They could dimly see the fantastic shapes of hundreds of stalact.i.tes hanging from the ceiling. Clumps of stalagmites made the floor a maze which they threaded painfully. The strong steady draft guided them like a radio beacon, leading them to their only faint hope of escape and life. Guinness, very tired, staggered along mechanically, a heavy weight on Phil"s supporting arm; James Quade ran here and there in frantic spurts of speed. Sue was silent, but the hopelessness in her eyes tortured Phil like a wound. His shirt had long since been ripped to shreds; his face, bruised in the first place by the borer he had crashed in, now was scratched and b.l.o.o.d.y from contact with rough stalagmites.
Then, without warning, they suddenly found among the rough walls on the far side of the cavern, the birthplace of the draft. It lay at the edge of the floor--a dark hole, very wide. Black, sinister and clammy from the draft that poured from it, it pierced vertically down into the very bowels of the earth. It was impa.s.sable.
James Quade crumpled at the brink; "It"s the end!" he moaned. "We can"t go farther! It"s the end of the draft!"
The hole blocked their forward path completely. They could not go ahead.... In seconds, it seemed, the slithering that told of the monster"s approach sounded from behind. Sue"s eyes were already fixed on the awful, surging ma.s.s when a voice off to one side yelled: "Here! Quick!"
It was Phil Holmes. He had been scouting through the gloom, and had found something.
The other three ran to him. "There"s another draft going through here," he explained rapidly, pointing to an angled crevice in the rocky wall. "There"s a good chance it goes to the cavern where the sphere and the hole to the surface are. Anyway, we"ve got to take it. I"d better go first, after this--and you, Quade, last. I trust you less than the monster behind."
He turned and edged into the crack, and the others followed as he had ordered. Quickly the pa.s.sageway broadened, and they found the going much easier than it had been before. For perhaps ten minutes they scrambled along, with the draft always on their backs and the blessed, though faint, fire of hope kindling again. In all that time they did not see their pursuer once, and the hope that they had lost it brought a measure of much needed optimism to drive their tired bodies onward. They found but few time-wasting obstacles. If only the tunnel would continue right into the original cavern! If only their path would stay clear and unhindered!
But it did not. The sound of Phil"s footsteps ahead stopped, and when Sue and her father came up they saw why.
"A river!" Phil said.
They were standing on a narrow ledge that overhung an underground river. A fetid smell of age-old, lifeless water rose from it. Dimly, at least fifty feet across, they could see the other side, shrouded in vague shadows. The inky stream beneath did not seem to move at all, but remained smooth and hard and thick-looking.
They could not go around it. The ledge was only a few feet wide, and blocked at each side.
"Got to cross!" Phil said tersely.
Quade, sickly-faced, stared down. "There--there might be other things in that water!" he gasped. "Monsters!"
"Sure," agreed Phil contemptuously. "You"d better stay here." He turned to the others. "I"ll see how deep it is," he said, and without the faintest hesitation dove flatly in.
Oily ripples washed back, and they saw his head poke through, sputtering. "Not deep," he said. "Chest-high. Come on."
He reached for Sue, helped her down, and did the same for her father. Holding each by the hand, Sue"s head barely above the water, he started across. They had not gone more than twenty feet when they heard Quade, left on the bank, give a hoa.r.s.e yell of fear and dive into the water. Their dread pursuer had caught up with them.
And it followed--on the water! Phil had hoped it would not be able to cross, but once more the thing"s astounding adaptability dashed his hopes. Without hesitation, the whitish jelly sprawled out over the water, rolling after them with ghastly, snake-like ripples, its pallid body standing out gruesomely against the black, odorous tide.
Quade came up thrashing madly, some feet to the side of the other three. He was swimming--and swimming with such strength that he quickly left them behind. He would be across before they; and that meant there was a good chance that the earth-borer would go up again with only one pa.s.senger....
Phil fought against the water, pulling Sue and her father forward as best he could. From behind came the rippling sound of their shapeless pursuer. "Ten feet more--" Holmes began--then abruptly stopped.
There had been a swish, a ripple upstream. And as their heads turned they saw the water part and a black head, long, evil, glistening, pointing coldly down to where they were struggling towards the sh.o.r.e. Phil Holmes felt his strength ooze out. He heard Professor Guinness gasp: "A water-snake!"
Its head was reared above the surface, gliding down on them silently, leaving a wedge of long, sluggish ripples behind. When thirty feet away the glistening head dipped under, and a great half-circle of leg-thick body arched out. It was like an oily stream of curved cable; then it ended in a pointed tail--and the creature was entirely under water....
With desperate strength Phil hauled the girl to the bank and, standing in several feet of water, pushed her up. Then he whirled and yanked old Guinness past him up into the hands of his daughter. With them safe, and Sue reaching out her hand for him, he began to scramble up himself.
But he was too late. There was a swish in the water behind him, and toothless, hard-gummed jaws clamped tight over one leg and drew him back and under. And with the touch of the creature"s mouth a stiff shock jolted him; his body went numb; his arms flopped limply down. He was paralyzed.
Sue Guinness cried out. Her father stared helplessly at the spot where his young partner had disappeared with so little commotion.
"It was an eel," he muttered dully. "Some kind of electric eel...."
Phil dimly realized the same thing. A moment later his face broke the surface, but he could not cry out; he could not move his little finger. Only his involuntary muscles kept working--his heart and his lungs. He found he could control his breathing a little.... And then he was wondering why he was remaining motionless on the surface. Gradually he came to understand.
He had not felt it, but the eel had let go its hold on his leg, and had disappeared. But only for a moment. Suddenly, from somewhere near, its gleaming body writhed crazily, and a terrific twist of its tail hit Phil a glancing blow on the chest. He was swept under, and the water around him became a maelstrom. When next he bobbed to the tumultuous surface, he managed to get a much-needed breath of air--and in the swirling currents glimpsed the long, snake-like head of the eel go shooting by, with thin trickles of stuff that looked like white jelly clinging to it.
That explained what was happening. The eel had been challenged by the ameboid monster, and they were fighting for possession of him--the common prey.
The water became an inferno of whipping and lashing movements, of whitish fibers and spearing thrusts of a glistening black electric body. Unquestionably the eel was using its numbing electric shock on its foe. Time and time again Phil felt the amoeba grasp him, searingly, only to be wrenched free by the force of the currents the combat stirred up. Once he thudded into the bottom of the river, and his lungs seemed about to burst before he was again shot to the top and managed to get a breath. At last the water quieted somewhat, and Phil, at the surface, saw the eel bury its head in a now apathetic mound of flesh.
It tore a portion loose with savage jaws, a portion that still writhed after it was separated from the parent ma.s.s; and then the victor glided swiftly downstream, and disappeared under the surface....
Holmes floated helplessly on the inky water. He could see the amoeba plainly; it was still partly paralyzed, for it was very still. But then a faint tremor ran through it; a wave ran over its surface--and it moved slowly towards him once again.
Desperately Phil tried to retreat. The will was there, but the body would not work. Save for a feeble flutter of his hands and feet, he could not move. He could not even turn around to bid Sue and David Guinness good-by--with his eyes....
Then a fresh, loved voice sounded just behind him, and he felt something tighten around his waist.
"It"s all right, dear!" the voice called. "Hang on; we"ll get you out!"
Sue had come in after him! She had grasped the rope tied to his belt, and she and her father were pulling him back to the bank!
He wanted to tell her to go back--the amoeba was only feet away--but he could only manage a little croak. And then he was safe up on the ledge at the other side of the river.
A surge of strength filled his limbs, and he knew the shock was rapidly wearing off. But it was also wearing off of the monster in the water. Its speed increased; the ripplings of its amorphous body-substance became quicker, more excited. It came on steadily.
While it came, the girl and her father worked desperately over Phil, ma.s.saging his body and pulling him further up the bank. It had all but reached the bank when Holmes gasped: "I think I can walk now. Where--where did Quade go to?"
Guinness gestured over to the right, up a dim winding pa.s.sage through the rocks.
"Then we must follow--fast!" Phil said, staggering to his feet. "He may get to the sphere first; he"ll go up by himself even yet! I"m all right!"
Despite his words, he could not run, and could only command an awkward walk. Sue lifted one of his arms around her shoulder, and her father took the other, and without a backward glance they labored ahead. But Phil"s strength quickly returned, and they raised the pace until they had broken once more into a stumbling run.
How far ahead James Quade was, they did not know, but obviously they could follow where he had gone. Once again the draft was strong on their backs. They felt sure they were on the last stretch, headed for the earth-borer. But, unless they could overtake Quade, he would be there first. They had no illusions about what that would mean....
CHAPTER V.
A Death More Hideous Quade was there first.
When they burst out of a narrow crevice, not far from the funnel-shaped opening they had originally entered, they saw him standing beside the open door of the sphere as if waiting. The searchlight inside was still on, and in its shaft of light they could see that he was smiling thinly, once more his old, confident self. It would only take him a second to jump in, slam the door and lock it. He could afford a last gesture....
The three stopped short. They saw something he did not.
"So!" he observed in his familiar, mocking voice. He paused, seeing that they did not come on. He had plenty of time.
He said something else, but the two men and the girl did not hear what it was. As if by a magnet their eyes were held by what was hanging above him, clinging to the lip of the hole the sphere had made in the ceiling.
It was an amoeba, another of those single-celled, protoplasmic mounds of flesh. It had evidently come down through the hole; and now it was stretching, rubber-like, lower and lower, a living, reaching stalact.i.te of whitish hunger.
Quade was all unconscious of it. His final words reached Phil"s consciousness.
"... And this time, of course, I will keep the top disintegrators on. No other monster will then be able to weigh me down!"
He shrugged his shoulders and turned to the door. And that movement was the signal that brought his doom. Without a sound, the poised ma.s.s above dropped.
James Quade never knew what hit him. The heap of whitish jelly fell squarely. There was a brief moment of frantic lashing, of tortured struggles--then only tiny ripples running through the monster as it fed.
Sue Guinness turned her head. But the two men for some reason could not take their eyes away....
It was the girl"s voice that jerked them back to reality. "The other!" she gasped. "It"s coming, behind!"
They had completely forgotten the ma.s.s in the tunnel. Turning, they saw that it was only fifteen feet away and approaching fast, and instinctively they ran out into the cavern, skirting the sphere widely. When they came to Quade"s wrecked borer Phil, who had s.n.a.t.c.hed a glance behind, dragged them down behind it. For he had seen their pursuer abandon the chase and go to share in the meal of its fellow.
"We"d best not get too far away," he whispered. "When they leave the front of the borer, maybe we can make a dash for it."
For minutes that went like hours the young man watched, waiting for the creatures to be done, hoping that they would go away. Fortunately the sphere lay between, and he was not forced to see too much. Only one portion of one of the monsters was visible, lapping out from behind the machine....
At last his body tensed, and he gripped Sue and her father"s arm in quick warning. The things were leaving the sphere. Or, rather, only one was. For Phil saw that they had agglutenated--merged into oneness--and now the monster that remained was the sum of the sizes of the original two. And more....
They all watched. And they all saw the amoeba stop, hesitate for a moment--and come straight for the wrecked borer behind which they were hidden.