as an inquiry into the further marvels of his process. "Here," he continued, enthusiastically, "I'll prove that to you also. My dog Spot is around the place somewhere. And he is a decrepit old hound, blind, lame and toothless. You've probably seen him with me."
He rushed to the stairs and whistled. There was an answering yelp from above and the pad of uncertain paws on the bare wooden steps. A dejected old beagle blundered into the room, dragging a crippled hind leg as he fawned upon his master, who stretched forth a hand to pat the unsteady head.
"Guess Spot is old enough for the test," laughed Tom, "and I have been meaning to restore him to his youthful vigor, anyway. No time like the present."
He led his trembling pet to the table of the remarkable tubes and lifted him to its surface. The poor old beast lay trustingly where he was placed, quiet, save for his husky asthmatic breathing.
"Hold him, Crompton," directed Tom as he pulled the starting lever of his apparatus.
And Old Crompton watched in fascinated anticipation as the ethereal luminosity bathed the dog's body in response to the action of the four rays. Somewhat vaguely it came to him that the baggy flesh of his own wrinkled hands took on a new firmness and color where they reposed on the animal's back. Young Forsythe grinned triumphantly as Spot's breathing became more regular and the rasp gradually left it. Then the dog whined in pleasure and wagged his tail with increasing vigor. Suddenly he raised his head, perked his ears in astonishment and looked his master straight in the face with eyes that saw once more. The low throat cry rose to a full and joyous bark. He sprang to his feet from under the restraining hands and jumped to the floor in a lithe-muscled leap that carried him half way across the room. He capered about with the abandon of a puppy, making extremely active use of four sound limbs.
"Why – why, Forsythe," stammered the hermit, "it's absolutely incredible. Tell me – tell me – what is this remarkable force?"
His host laughed gleefully. "You probably wouldn't understand it anyway, but I'll tell you. It is as simple as the nose on your face. The spark of life, the vital force, is merely an extremely complicated electrical manifestation which I have been able to duplicate artificially. This spark or force is all that distinguishes living from inanimate matter, and in living beings the force gradually decreases in power as the years pass, causing loss of health and strength. The chemical composition of bones and tissue alters, joints become stiff, muscles atrophied, and bones brittle. By recharging, as it were, with the vital force, the gland action is intensified, youth and strength is renewed. By repeating the process every ten or fifteen years the same degree of vigor can be maintained indefinitely. Mankind will become immortal. That is why I say I am to be master of the world."
For the moment Old Crompton forgot his jealous hatred in the enthusiasm with which he was imbued. "Tom – Tom," he pleaded in his excitement, "use me as a subject. Renew my youth. My life has been a sad one and a lonely one, but I would that I might live it over. I should make of it a far different one – something worth while. See, I am ready."
He sat on the edge of the gleaming table and made as if to lie down on its gleaming surface. But his young host only stared at him in open amusement.
"What? You?" he sneered, unfeelingly. "Why, you old fossil! I told you I would choose my subjects carefully. They are to be people of standing and wealth, who can contribute to the fame and fortune of one Thomas Forsythe."
"But Tom, I have money," Old Crompton begged. But when he saw the hard mirth in the younger man's eyes, his old animosity flamed anew and he sprang from his position and shook a skinny forefinger in Tom's face.
"Don't do that to me, you old fool!" shouted Tom, "and get out of here. Think I'd waste current on an old cadger like you? I guess not! Now get out. Get out, I say!"
Then the old anchorite saw red. Something seemed to snap in his soured old brain. He found himself kicking and biting and punching at his host, who backed away from the furious onslaught in surprise. Then Tom tripped over a wire and fell to the floor with a force that rattled the windows, his ferocious little adversary on top. The younger man lay still where he had fallen, a trickle of blood showing at his temple.
"My God! I've killed him!" gasped the old man.
With trembling fingers he opened Tom's shirt and listened for his heartbeats. Panic-stricken, he rubbed the young man's wrists, slapped his cheeks, and ran for water to dash in his face. But all efforts to revive him proved futile, and then, in awful fear, Old Crompton dashed into the night, the dog Spot snapping at his heels as he ran.
Hours later the stooped figure of a shabby old man might have been seen stealthily re-entering the lonely workshop where the lights still burned brightly. Tom Forsythe lay rigid in the position in which Old Crompton had left him, and the dog growled menacingly.
Averting his gaze and circling wide of the body, Old Crompton made for the table of the marvelous rays. In minute detail he recalled every move made by Tom in starting and adjusting the apparatus to produce the incredible results he had witnessed. Not a moment was to be wasted now. Already he had hesitated too long, for soon would come the dawn and possible discovery of his crime. But the invention of his victim would save him from the long arm of the law, for, with youth restored, Old Crompton would cease to exist and a new life would open its doors to the starved soul of the hermit. Hermit, indeed! He would begin life anew, an active man with youthful vigor and ambition. Under an assumed name he would travel abroad, would enjoy life, and would later become a successful man of affairs. He had enough money, he told himself. And the police would never find Old Crompton, the murderer of Tom Forsythe! He deposited his small traveling bag on the floor and fingered the controls of Tom's apparatus.
He threw the starting switch confidently and grinned in satisfaction as the answering whine of the motor-generator came to his ears. One by one he carefully made the adjustments in exactly the manner followed by the now silenced discoverer of the process. Everything operated precisely as it had during the preceding experiments. Odd that he should have anticipated some such necessity! But something had told him to observe Tom's movements carefully, and now he rejoiced in the fact that his intuition had led him aright. Painfully he climbed to the table top and stretched his aching body in the warm light of the four huge tubes. His exertions during the struggle with Tom were beginning to tell on him. But the soreness and stiffness of feeble muscles and stubborn joints would soon be but a memory. His pulses quickened at the thought and he breathed deep in a sudden feeling of unaccustomed well-being.
The dog growled continuously from his position at the head of his master, but did not move to interfere with the intruder. And Old Crompton, in the excitement of the momentous experience, paid him not the slightest attention.
His body tingled from head to foot with a not unpleasant sensation that conveyed the assurance of radical changes taking place under the influence of the vital rays. The tingling sensation increased in intensity until it seemed that every corpuscle in his veins danced to the tune of the vibration from those glowing tubes that bathed him in an ever-spreading radiance. Aches and pains vanished from his body, but he soon experienced a sharp stab of new pain in his lower jaw. With an experimental forefinger he rubbed the gum. He laughed aloud as the realization came to him that in those gums where there had been no teeth for more than twenty years there was now growing a complete new set. And the rapidity of the process amazed him beyond measure. The aching area spread quickly and was becoming really uncomfortable. But then – and he consoled himself with the thought – nothing is brought into being without a certain amount of pain. Besides, he was confident that his discomfort would soon be over.
He examined his hand, and found that the joints of two fingers long crippled with rheumatism now moved freely and painlessly. The misty brilliance surrounding his body was paling and he saw that the flesh was taking on a faint green fluorescence instead. The rays had completed their work and soon the transformation would be fully effected. He turned
