Walton threw himself energetically into his work. It was taking shape, now. There were still some loose ends, of course, but he was beginning to feel that some end to the tangle of interlocking intrigues was in sight.

He checked with a public recreation director and discovered there would be a block forum on West 382nd Street at 1830 that night. He made a note to attend, and arranged to have a synthetic mask fashioned so he wouldn't have to reveal his own identity.

Twenty-four hours. In that time, Fred's employers would presumably be readying themselves to loose Lamarre's serum on the world; an extraterrestrial being would be landing on Earth—and, by then, Walton would have been called to render an account of his stewardship before the United Nations.

The annunciator chimed again. "Yes?" Walton said.

"Mr. O'Mealia of Mount Palomar Observatory, calling long distance to talk to you, sir."

"Put him on," Walton said puzzledly.

O'Mealia was a red-faced individual with deep-set, compelling eyes. He introduced himself as a member of the research staff at Mount Palomar. "Glad I could finally reach you," he said, in a staccato burst of words. "Been trying to call for an hour. Made some early-morning observations of Venus a little while ago, and I thought you'd be interested."

"Venus? What?"

"Cloud blanket looks awfully funny, Mr. Walton. Blazing away like sixty. Got the whole staff down here to discuss it, and the way it looks to us there's some sort of atomic chain-reaction going on in Venus' atmosphere. I think it's those terraforming men you Popeek folk have up there. I think they've blown the whole place up!"