"I think perhaps you'd like to observe the operations, my friend, and I'm going to allow you to. Not here—no. I could never have you interrupting; the series of operations is of infinite delicacy and will require weeks. But I can make other arrangements; I can give you as good as ringside seats for each performance. A small visi-screen might be attached to one wall of your cell to enable you to see every detail of what transpires here." His tone suddenly stiffened. "I wouldn't, Carse!"

The Hawk relaxed from the brink on which he had wavered. A sudden mad rush—what else remained? What else? For an instant he had lost his head—one of the several times in his whole life. Just for an instant he had forgotten his phenomenal patience under torture, his own axiom that in every tight place there was a way out.

"That's much safer," said Ku Sui. "Perhaps you and the black had better return to your cell."

Certain little muscles in the Hawk's face were trembling as he turned to go, and his feet would not work well. The ray-guns of the coolie-guards covered his every move. Friday followed just behind.

As the adventurer came to the door he stopped and turned, and his eyes went back to those of the frail, elderly scientist.

The doomed man met the gray eyes and their agony with a smile.

"It's all right, old comrade," he said. "Just remember to destroy this hellish device, if you ever possibly can. My love to Sandra; and to her, and my dear ones on Earth, anything but the truth.... Farewell."

Carse's fingernails bit each one into his palms. He hesitated; tried, but could not speak.

"All right, Carse—you may go."

The feelingless guards nudged white man and black out, and the door swung solidly closed behind them....