But then, Harry was growing accustomed to surprises.

He found a room of his own, ready and waiting, on the second floor; here the furniture was of almost antique vintage, but adequate in size. And here, in an atmosphere of unaccustomed comfort, he could talk.

"So you're a physician, eh?" Harry gazed down into the diminutive face, striving to accept the fact that he was speaking to a mature adult. His own son—his and Sue's—a grown man and a doctor! It seemed incredible. But then, nothing was more incredible than the knowledge that he was actually here, in his child's home.

"We're all specialists in one field or another," his son explained. "Every one of us born and surviving during the early experimental period received our schooling under a plan Leffingwell set up. It was part of his conditional agreement that we become wards of the state. He knew the time might come when we'd be needed."

"But why wasn't all this done openly?"

"You know the answer to that. There was no way of educating us under the prevailing system, and there was always a danger we might be singled out as freaks who must be destroyed—particularly in those early years. So Leffingwell relied on secrecy, just as he did during his experimentation period. You know how you felt about that. You believed innocent people were being murdered. Would you have listened to his explanations, accepted the fact that his work was worth the cost of a few lives so that future billions of human beings might be saved? No, there was no time for explanation or indoctrination. Leffingwell chose concealment."

"Yes," Harry sighed. "I understand that better now, I think. But I couldn't see it then, when I tried to kill him." He flushed. "And I still can't quite comprehend why he spared me after that attempt."

"Because he wasn't the monster you thought him to be. When I pleaded with him—"

"You were the one!"

Harry's son turned away. "Yes. When I was told who you really were, I went to him. But I was only a child, remember that. And he didn't spare you out of sentimentality. He had a purpose."