Amusement, but her voice grew warm when she unsmiling spoke of robots. She had told me about the speedies the Cuties, and the Daves, and then I stopped her before she began to tell me about another type. Doesn't anything ever happen on Earth?' I asked. She looked at me with a little frown. “No, we don't have many problems with robots here on Earth.' “That's too bad. Our readers will enjoy the stories about your engineers, but can't we have a story about you? Didn't a robot that you were working on ever go wrong. Dr Calvin's face reddened. “Well, yes. Robots have gone wrong. It's a long time since I thought about it. It was almost forty years ago 2021. And I was only thirty-eight Oh dear -I'd rather not talk about it.' I waited, and she changed her mind “Why not?' she said. “It can't hurt me now. Even the memory can't. I was foolish once, young man. Would you believe that?' 'No,' I said. Robot “I was. But Herbie was able to read minds. The only of its kind, before or since. A mistake somewhere