"What do you have to do?"
"I have to talk to some people."
"What people do you have to talk to?"
"I'm not quite sure yet. I haven't made up my mind."
"When will you make up your mind?"
Joe considered Biddy's questions gravely as though each one was very important. "I'm not quite sure. That machine in the cave isn't just to make little girl's legs well. It does other things. It tunes in on thought waves just the way your television set tunes in on pictures."
"You mean it tells you what people are thinking about?"
"In a way, it does. And after a while I'll look at the things the machine has recorded and then I'll decide what I have to do or say."
There was silence while Biddy's mind went off on another track. Pretty soon she said, "Joe, there's a boy named Davey—well, he isn't a boy, really, he's almost a man—and his leg is like mine was. He can't walk on it either."