Betty looked at him admiringly. Came to her feet, crossed over and took up the fifty dollars. "Week's wages," she said. "I suppose that's one way of taking care of a crackpot. But I'm surprised you didn't take his money and enjoy that vacation you've been yearning about." "I did," Simon groaned. "Three times." Betty stared at him. "You mean--" Simon nodded, miserably. She said, "But _Simon_. Fifty thousand dollars bonus. If that story was true, you should have gone back again to Munich. If there was one time traveler, there might have been--" "I keep telling you," Simon said bitterly, "I went back there three times. There were hundreds of them. Probably thousands." He took a deep breath. "Listen, we're just going to have to forget about it. They're not going to stand for the space-time continuum track being altered. If something comes up that looks like it might result in the track being changed, they set you right back at the beginning and let things start--for you--all over again. They just can't allow anything to come back from the future and change the past." "You mean," Betty was suddenly furious at him, "you've given up! Why this is the biggest thing-- Why the fifty thousand dollars is nothing. The future! Just think!" Simon said wearily, "There's just one thing you can bring back with you from the future, a hangover compounded of a gallon or so of Marzenbraeu. What's more you can pile one on top of the other, and another on top of that!" He shuddered. "If you think I'm going to take another crack at this merry-go-round and pile a fourth hangover on the three I'm already nursing, all at once, you can think again." THE END Transcriber's Note: This etext was produced from _Astounding Science Fiction_ June 1959. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed. Minor spelling and typographical errors have been corrected without note. End of Project Gutenberg's Unborn Tomorrow, by Dallas McCord Reynolds