"Baloney," snorted Vinson. "I'll bet you anything you value that—"

"I am no gambler. The laws of probability—"

"Wouldn't take a chance if your life depended on it, huh?" sneered Vinson.

Narina looked at him, startled. His voice had taken on power; he appeared to have more confidence. She squeezed his hand encouragingly.

"Why should I?" replied the machine.

"Because you had better," stated Harry Vinson. "Man is a gambler from the date of his birth; man will take a chance. Furthermore, you mechanical monster, man doesn't know when he is licked! Unless you kill us all, root and branch, some one of us will come up with that which will defeat you!"

"Without machines to help?" came the reply with a sneering tone.

"With something," said Harry Vinson.

"Just what?"

"I don't know," said the man. "But I know this: Man's capability is as yet unlimited. To do, to think, to act, not one of us has ever tapped but the surface of our ability. You, on the other hand, are working at your near-maximum capacity. That which will defeat you is naturally unknown to both man and you.