Their guest unfolded joint by joint like a collapsible rule.

"Of course, if you think I'm spying," he grated.

"Not at all," protested Jack, although he longed to strike the brute across the face. "It's just that voices of certain pitches interfere. Surely you have seen radio operators go all to pieces when spoken to."

Ungraciously Solinski allowed himself to be ushered into the outer room. Once there he disposed his lean form on another chair, unctuously refused a highball, and, forgetting his momentary anger, soon was deep in a scientific discussion of the problems involved in revivifying the world.

He mentioned the nearby radio station but declared that he had been unable to locate it despite a careful search. Dismissing this he turned to other topics, displaying a vast knowledge of all departments of scientific achievement and, despite his depressing personality, holding his bearer's attention so closely they forgot the passage of time until the clock struck ten.

"Time for daily injection," said the doctor. "Do you use Andrev's solution too, sir?"

"Naturally," replied the other, lighting one cigarette from the butt of another.

Manthis hurried into the laboratory. A few moments later he reappeared in the doorway and called to Jack in an agitated voice. As the younger man joined him he closed the door and turned a white face to him.

"The drug is almost gone," Manthis said. "Didn't you obtain a new supply?"