"I can imagine," Georg said. "You were at Park Sixty when the President fell, weren't you?"

"Yes. But I wasn't supposed to be. I wasn't assigned to that. How did you guess?"

"Elza saw you. She had our finder on you—I couldn't push her away from it." His slow smile was quizzical.

"On me? In all that crowd. She must have searched about very carefully to——"

I stopped; I could feel my cheeks burning, and was glad of the dimness there under the trees.

"She did," said Georg.

"I sent for you, Jac," Dr. Brende interjected abstractedly, "because——"

But Georg checked him. "Not now, father. Someone—anyone—might pick you up. Your words—or read your lips—there's light enough here to register on a finder."

The doctor nodded. "He's afraid—you see, Jac, it's these Venus——"

"Father—please. It's a long chance—but why take any? We can insulate in the house."