"You didn't invent vitaplasm, Uncle Mitch," he stated. "No one could have—alone." His sullenly serious gaze lingered on the mask. It was warm to his touch. It even recoiled a little. Mitchell Prell shook his head and chortled. "No, Nipper. You know that research is now far too complex for that. I helped a little. Lots of men did. Maybe I've added something to what is known. I've got to give my data to specialists here before I leave." Eddie thought of a man he'd sometimes seen on television. No bigger than Uncle Mitch. And plain looking. But great. Dr. Schaeffer in his underground laboratory in the City. "You aren't going to try to reach a star, are you?" young Ed asked. Uncle Mitch shook his head. "No. I won't wander so far off." He laughed. "But in a way I'll be going farther, I suppose. Though don't imagine that I mean time or hyper-dimensional travel. It's something simpler. But it's to a place where no one can journey exactly as a human being. I can't tell you much more. Because I don't want other people to try to dig too much out of you. But I want to look at things from a new angle. And from very close up, you might say. Maybe I'm trying to hide from danger, Eddie. Some. But the bigger reason is that I want to go on learning and exploring. Maybe my being a small man means something, too." Mitchell Prell ended with another light laugh. He put the mask in his pocket and snapped a large suitcase shut. When he spoke again it was on a slightly different tack: "You probably won't see me for a while, Eddie. About your father, words just aren't any good at all. Maybe I'll ache over his end even harder than you. If anybody asks you questions about me, tell all you know. Don't try to hide anything for my sake. They'll pry it out of you anyway. And they'll only know what I want them to know. "Your mother may get a letter in a few days asking you both to report to the City. If that letter comes, see that she conforms to its request. It will also mean that I've delivered the results of my experiments with vitaplasm, as far as they've gone, into the proper hands and have probably succeeded in getting away into space. I hope that you and I and everybody make it to the Big Future, Eddie. That's all I have to say. Unless you care to remember a word that may crop up again—android." Mitchell Prell grinned reassuringly at his nephew and moved to put on his mask.