by Unknown
The booming, vast croaks filled the whole valley, reverberating through the hills. Wails sounded from the peon camp.
The big Portuguese was shouting to the Gurlones. "Come out, come out!"
Maget gripped his own rifle, and stood up, bravely. His fear, though it was great, seemed to have brought out the better side of the man, while Durkin, so brave at first, had cracked under the strain.
"Look out, they'll see you," whimpered Durkin.
Maget strode forward. A blast of fetid, stinking air struck his face, and he choked. The noises were now ear-splitting, but above the bellows came the sounds of the big rifles, the echoes booming through the recesses of the cavern.
Then the two Gurlones, running madly, burst from the mine entrance.
"Run," they screamed. "Run for your life, Espinosa!"
"I'll help you," cried Maget, and Durkin could detain him no longer.
* * * * *
The Gurlones hardly noticed the newcomer, as they ran madly towards the shelter of their houses. Espinosa joined them, going swiftly in spite of his blind eyes.
The croaking made Maget's brain scream with the immensity of the sound. Luminous, white disks, three feet in diameter, glared at him, and the creature, which progressed with jerky leaps toward him, almost filled the mouth of the mine.
It was hot in pursuit of the fleeing Gurlones. It squatted and then jumped, and presently it was out in the night air.
Its form was that of a gigantic frog, but it stood some twenty feet in height, and from its throat sounded the terrific bellowing which rivalled the thunder.
Maget bravely stepped forward, and began to fire into the huge, soft body. The great mouth opened, and as the dum-dum bullets tore gashes in the blackish green batrachian, the thunderous croaks took on a note of pain.
The odor of the creature was horrible. Maget could scarcely draw his breath as he fired the contents of the magazine into the big animal. Two more jumps brought the frog almost to Maget's feet, and the tropical tramp felt a whiskerlike tentacle touch his face, and bad smelling slime covered him.
The frog was blind, without doubt, from its underground life, but the tentacles seemed to be the way it finally located its prey, for it turned on Maget and made a final snap at him. The great jaws closed like the flap of hell, and Maget leaped back with a cry of triumphant terror.
* * * * *
The bullets had finally stopped the big frog, but at its heels came a strange, jellylike creature, not quite as bulky as the frog, but pushing along on its legs and with a tail some eight feet thick and fifteen feet in length. This, too, evidently a polywog, was blind, with whitened discs for eyes, but it slid along at a rapid rate because of its size. Maget's gun was empty; he turned so flee, but the polywog stopped and sniffed at the thick blood of its fellow. Then, to Maget's relief, it began to hungrily devour its companion.
Utterly filthy, and ferocious, the polywog in silence snapped great chunks from the dead giant frog.
"Hello. Who are you?"
Maget turned, having forgotten the amenities of life in the excitement. Professor Gurlone and his son, still clad in their black suits, but with their helmets off, were standing beside him, clutching their guns and lights.
The big Portuguese, Espinosa, appeared, and Durkin was beside him.
"Why," said Maget, between gasps, "we just happened to be out exploring, and we saw your camp. We were on our way in when we heard the noises and came to investigate."
"I see," said old Gurlone. "What made you head in this direction, and where's your outfit?"
"Oh, we cached most of it back there," said Maget. "My partner's hurt his foot, so he can't walk well. Isn't that so, Durkin?"
"Yeh," growled Durkin. "I got a sore foot, all right."
* * * * *
Old Gurlone was suspicious of the vague story which Maget and Durkin concocted as the explanation of their presence in the valley. But evidently the Professor was too worried about the situation in which he and his friends were, to question the two tramps very closely. In fact, he seemed rather glad that he had two more pairs of hands to aid him and he thanked Maget for his bravery.
They dispatched the great polywog as it tore its parent to bits, and then the five men, the two Gurlones, Espinoza, Maget, and the limping, cursing Durkin, retired to one of the shacks.
The living quarters of the Gurlones was quite elaborate. There were many books on rough shelves, and there was a small bench filled with glass phials and chemicals, though the main laboratory was in one of the long buildings.
Professor Gurlone poured drinks for the five, and welcomed Durkin and Maget as allies.
"We'll need every man we can get, if we are to cope with these great creatures," said old Gurlone. "The peons are too frightened to be of use. Luckily, it was a frog we came upon on the banks of the subterranean river. There is no telling how many more creatures of the same or greater size may be down there. We will have to destroy them, every one."
Maget and Durkin shuddered. "Say," blurted Durkin, his face working nervously, "how the hell did that frog get so big? I thought I was seein' things, Professor."
"No, no," said Professor Gurlone. "You see, the ore in the mine contains radium, that is, salts of radium. It is a pitchblende deposit, and it happens to be so rich in radium content that throughout the ages it has affected all the life in the cavern. The arid land surrounding the ore--this has been, generally, one of the characteristics of radium deposits--has kept most of the jungle creatures away, but underground beings such as reptiles, worms and frogs, have gradually become immune to the effects of the ore and have grown prodigiously and abnormally under the stimulation of the rays given off by the radium.
"Now, this is nothing strange in itself, but never before has such a rich deposit been discovered, so that the amounts of radium available have been too small to really check its effect on growth in animals. That is our chief scientific object in coming here: we realized, from Senor Espinosa's description of the played-out silver mine he had, and from his loss of sight, that he had stumbled upon a valuable deposit of radium. It usually occurs with silver, that is, the uranium mother ore does, through the disintegration of which radium is formed. The content of radium per ton in this ore proved unbelievably rich: we were delighted. I have always suspected that the animal cell might be stimulated into abnormal growth by exposure to radium salts, for such a thing already has been hinted at in the scientific world. Not till our chance came here, however, has enough radium been available for the experiments."
* * * * *
Maget and Durkin listened with open mouths. Radium meant but vague things to them. They had heard of radium paint which shone in the dark on the dials of watches and clothes, but of the properties of the metal and its salts they were utterly ignorant.
"That radium stuff is what makes the funny light in that mine, then?" asked Maget.
"Exactly. The radio-activity of the elements in the ore give off the light. There are three rays, the alpha, beta and gamma, and--"
The professor forgot himself in a lecture on the properties of radium.
Durkin, breaking in, asked, slyly. "Is this radium worth as much as silver?"
Young Kenneth Gurlone laughed, and even old Professor Gurlone smiled. "Radium is worth more than gold or diamonds or platinum. Its value is fabulous. We have five million dollars worth already, in the form of the chloride."
"Whew," whistled Durkin.
He glanced sidewise at Maget.
"Yes," said Professor Gurlone, "five million dollars worth of it! Those great monsters who have been developed throughout the ages by the action of the radium rays on their bodies, causing them to grow so prodigiously, are but incidents. We must destroy them, so that our work cannot be interfered with. We must use dynamite, blow them to bits. They are powerful enough to crush the stone bank by the mine mouth and ruin the labors of the past two years, gentlemen."
Armed, and once more fortified with whiskey, the five made their way
outside. The moon was darkened by an immense shadow, as one of the giant bats winged its way over their heads. But there were no more monster frogs. The ugly, bulky shapes of the dead polywog and its parent lay before them.
"We are safe for the moment," said Professor Gurlone. "Go and quiet the peons, Espinosa: they will listen to you."
* * * * *
The peons still wailed in terror; the blind Espinosa slipped silently away.
"Come," said Professor Gurlone, to his son and to Maget and Durkin. "I will show you the laboratory, so that you can understand better the effects of radium on growth."
The professor led them to the long, low, many-windowed building nearby, and flooded it with light. It contained cage after cage in which were monkeys, pumas, and various jungle folk. These creatures set up a chattering and howling at the light and intruders.
Maget glanced curiously about him. He saw shining vials and glassware of queer shapes on long black tables, and tubes of chemicals. There were immense screens of dull lead. "Those are for protection," said Professor Gurlone, "as are the lead-cloth suits we wear. Otherwise we would be burned by radium rays."
Maget looked about, to see if his partner was listening, but he had gone away.
However, Maget was intensely interested. He went from cage to cage as Professor Gurlone, rather in the manner of a man giving a lecture to students, pointed out animal after animal that had been treated by the radium.
"This," said the professor, "is a monkey which usually attains a height of two feet. You can see for yourself that it is now larger than a gorilla."
* * * * *
The horrible, malformed creature bared its teeth and shook its bars in rage, but it was weak, evidently, from the treatment accorded it. Its hair was burned off in spots, and its eyes were almost white.
There was a jaguar, and this beast seemed to have burst its skin in its effort to grow as large as three of its kind.
"You see, we have not so much time as nature," said Professor Gurlone. "These beasts cannot be enlarged too rapidly, or they would die. They must be protected from the direct rays of the radium, which is refined. In the ore, the action is more gradual and gentle, since it is less concentrated. But the metal itself would burn the vital organs out of these creatures, cause them to be struck blind, shrivel them up inside and kill them in a few minutes in the quantity we have. We expose them bit by bit, allowing more and more time as they begin to grow immune to the rays. Here, you see, are smaller creatures which have grown some eight or ten times beyond normal size."
All the animals seemed the worse for wear. Maget, his brain reeling, yet was beginning to grasp what radium did to one. It was not gold that you could pick up and carry away.
"If a man touched that radium," he asked, "what would happen to him?"
"Just what I said would happen to the animals if we did not give it to them gradually," said Gurlone, with a wave of his hand. "It would kill him, strike him down as though by invisible poison gas. His heart and lungs would cease to function, pernicious anemia would set in, as the red corpuscles in his blood perished by millions. He would be struck blind, fall down and die in agony."
To Maget came the picture of the unfortunate Juan. As though answering his unasked question, Professor Gurlone went on. "We had a peon coming up with us," he said. "His name was Juan. He stole my sample-case, which contained an ounce of radium chloride, and ran off with it. If he opens it, it will kill him in just that way."
* * * * *
Maget shivered. "But--but didn't it hurt you to carry it?" he asked.
"No. For it was incased in a lead container some two inches in thickness, and the rays cannot penetrate such a depth of lead. They are trapped in the metal."
"Father, father, you're wasting time," broke in Kenneth Gurlone, shaking his yellow head. "We must act at once. The peons are almost mad with fear. Even Espinosa cannot quiet them. And every moment is precious, for the monsters may break forth."
But Maget was looking nervously about for Durkin. Where was he? Durkin had his mind on the treasure, and--
As they turned toward the door, the professor saying. "The rays from the ore, which is nor so concentrated as the purified metal, do not kill--" Durkin suddenly appeared.
He carried his rifle at his hip, and he limped and cursed angrily. "Come across," shouted Durkin. "Give me the key to that stone house. Snap into it, and no argument."
"The key--to the stone bank?" repeated old Gurlone.
"Yes. I'll give you five counts to throw it over--then I'll shoot you and take it," snarled Durkin savagely. "I want that treasure, whatever it is, and I'll have it. One ... two ... three...." The tramp sent a shot over their heads as a warning.
"Hey, Bill, easy, easy," pleaded Maget. "That stuff is radium. It'll ruin you, boy!"
"Shut up, you yeller-bellied bum," snarled Durkin. "Four...."
A tinkle of metal came on the stone floor of the laboratory, as old Gurlone tossed his keys to Durkin.
"Don't go in that shack," cried young Gurlone. "It'll be your death, man--"
"Liars," yelled Durkin, and backed out the door.
"H'm," said old Gurlone, turning to Maget. "So you came to rob us, eh?"
* * * * *
But Maget thought of Juan, and then he knew he did not want Durkin, in spite of his failings, to perish so. He ran for the door, and across the clearing.
"Durkin--Bill--wait, it's Frank--"
Great bellowings sounded from the bowels of the earth, but Maget ignored these in his effort to save his partner. Durkin had the padlock off the stone shack, and pulled back the door.
As the door disclosed the interior, Maget could see that a greenish haze filled the entire building. Wan liquid light streamed forth like heavy fluid.
Bravely, to save his pal from death, Maget ran forward. But Durkin had entered the stone shack.
Maget went to the very door of the building. Durkin was inside, and Maget could see his partner's thick form as a black object in the strange, thick air.
An eery scream came suddenly from Durkin's lips; Maget wrung his hands and called for help.
"Come out, Bill, come out," he cried.
Durkin evidently tried to obey, for he turned toward the door. But his knees seemed to give way beneath him, he threw his arm across his eyes as he sank to the ground, crying in agony, incoherent sounds issuing from his lips.
Shriek after shriek the unfortunate man uttered. As Maget made a dash forward to take a chance with death and rescue his friend, Professor Gurlone and his son Kenneth ran up and threw a black cloak over the tramp.
The three entered the shack of death. Maget, not entirely covered, felt his heart give a terrific jump, and he gasped for breath. Durkin was quivering on the floor which was lined with lead.
* * * * *
Round vials stood about the room like a battery of search-lights, and from these emanated the deadly green haze.
But almost before Maget touched his pal, Durkin was dead. Curled up as though sewed together by heavy cords. Durkin lay in a ball, a shaking mass of burned flesh.
The two Gurlones pushed out ahead of them, and raised their hands. They had on their black suits and their helmets.
"It is too late to do anything for him now," said Kenneth Gurlone sadly. "He was headstrong. You can see for yourself that the five million dollars takes care of itself. Certain death goes with it if you are unprotected. These lead-cloth suits will keep off the rays for a short time. We always wear them when we are working with the metal, even when we have a lead screen."
"Poor Bill," sobbed Maget. "It's terrible!"
Professor Gurlone shrugged. "It was his own fault. He was a thief and he would not let us stop him. I hope it's been a lesson to you, Maget."
"Yes, I want to help you," said Maget. "If you'll keep me with you, I'll work for you and be straight. Give me a chance."
"Good. Then shake hands on it," said Kenneth, and they clasped hands firmly.
Espinosa appeared fro
m the darkness. "The peons are mad with terror," he said morosely. "They cannot be held much longer. They will revolt."
"Well, we must kill the creatures in the cavern: that will quiet them more than anything else," said Professor Gurlone.
"Better close the stone shack," said Kenneth.
But as he spoke, a vast shape, another giant frog, appeared in the entrance of the shaft.
"Get some dynamite and fuses," ordered Professor Gurlone quietly. "Come on Kenneth, and you, Maget, if you care to risk your life. You need not do so unless you wish to."
Bravely, the older man led the way towards the croaking monster. The ground shook at its approach. It was heading for the bodies of the dead frog and polywog, bent on a search for food. Evidently these vast creatures were forced to prey upon one another for sustenance.
* * * * *
The rifles spoke, and Maget and the professor, in their black suits, protected by the lead-cloth and helmets from the rays, advanced. They poured bullet after bullet into the frog.
Kenneth came running to join them, and Espinosa stood by. Kenneth had dynamite bombs with fuses ready for lighting and throwing. He also brought more ammunition, and the three armed themselves to the teeth.
It was well after midnight when they started into the mine. They knew they must act quickly or retreat, for the bellowing sounded nearer and nearer the surface of the earth.
Each man carried big, powerful flashlights, and the three entered the mine shaft and walked across the seething slugs into the bowels of the earth.
"Stay close together," ordered old Gurlone.
The mine was easy to descend for the first hundred yards. It led in a gentle slope downward. The way, save for a few giant bats and moths, and the big maggots, was clear. The greenish haze, not so bright as that in the death shack, enveloped them, but they needed their flashes to see clearly.
"Slowly, take it easy," counseled old Gurlone.
The mine spread out now, and began a steeper descent. The air was poor, and it was hard to breathe through the mask. Maget, his heart thumping mightily, listened to the roaring within the depths of the mine.