Halsey was saying, "Well, apparently we can't blame you: but the secret is out."

Snap and I regarded each other. What could anyone do? What would anyone dare do?

Captain Carter said abruptly, "Look here, lads, this is my chance now to talk plainly to you. Outside, anywhere outside these walls, an eavesdropping ray may be upon us. You know that? One may never even dare to whisper since that accursed ray was developed."

Snap opened his mouth to speak but decided against it. My heart was pounding.

Captain Carter went on: "I know I can trust you two more than anyone under me on the Planetara."

"What do you mean by that?" I demanded. "What—"

He interrupted me. "Just what I said."

Halsey smiled grimly. "What he means, Haljan, is that things are not always what they seem these days. One cannot always tell a friend from an enemy. The Planetara is a public vessel. You have—how many is it, Carter?—thirty or forty passengers this trip tonight?"

"Thirty-eight," said Carter.

"There are thirty-eight people listed for the flight to Ferrok-Shahn tonight," Halsey said slowly. "And some may not be what they seem." He raised his thin dark hand. "We have information...." He paused. "I confess, we know almost nothing—hardly more than enough to alarm us."