Karen drew a shivering breath and smiled at him. "And everything else just begun, Allen," she said. He nodded, feeling too much for words.

"Get to bed with you," ordered Pappas.


Jessup led Lancaster off, and one by one the others drifted back to their jobs. Finally only Karen and Berg stood by the airlock.

"You keep your beautiful mouth shut, my dear," said the man.

"Oh, sure." Karen sighed unhappily. "I wish I'd never learned your scheme. When you explained it to me I wanted to shoot you."

"You insisted on an explanation," said Berg defensively. "When Allen was due to go back to Earth, you wanted us to tell him who we were and keep him. But it wouldn't have worked. I've studied his dossier, and he's not the kind of man to switch loyalties that easily. If we were to have him at all, it could only be with his full consent. And now we've got him."

"It was still a lousy trick," she said.

"Of course it was. But we had no choice. We had to have a first-rate physicist."

"You know," she said, "you're a rat from way back."