Honek shrugged his shoulders. "It might be a lot worse than even that and you know it. The disappearance of a two-time father is going to leave an awful big vacancy in the world. One-timers, like Bob and me, are all over the place; if either of us dropped out of sight, it wouldn't cause nearly as much uproar." "But Bob and you both tried to operate the machine," Albin reminded him. "And you blacked out after a fifteen-second temporal displacement. So I'm the only chance, the only way to stop the human race from dwindling and dwindling till it hits absolute zero, like that fat old Security Council seems willing for it to do." "Take it easy, Mac," Bob Skeat said as he handed the metal box to Albin. "The Security Council is just trying to solve the problem in their way, the conservative way: a worldwide concentration on genetics research coupled with the maximum preservation of existing human lives, especially those that have a high reproductive potential. We three disagree with them; we've been skulking down here nights to solve it _our_ way, and ours is a radical approach and plenty risky. That's the reason for the metal box--trying to cover one more explosive possibility." Albin turned it around curiously. "How?" "I sat up all last night writing the manuscript that's inside it. Look, Mac, when you go back to the Guided Missile Experiment of 1976 and push that red switch away from you, a lot of other things are going to happen than just deflecting the missile so that it will explode in the Brazilian jungle instead of the Pacific Ocean." "Sure. I know. If it explodes in the jungle, the Epidemic doesn't occur. No Shapiro's Mumps." Skeat jiggled his pudgy little face impatiently. "That's not what I mean. The Epidemic doesn't occur, but something else does. A new world, a different 2089, an alternate time sequence. It'll be a world in which humanity has a better chance to survive, but it'll be one with problems of its own. Maybe tough problems. Maybe the problems will be tough enough so that they'll get the same idea we did and try to go back to the same point in time to change them." * * * * * Albin laughed. "That's just looking for trouble." "Maybe it is, but that's my job. Hugo's the designer of the time machine and you're the operator, but I'm the theoretical man in this research team. It's my job to look for trouble. So, just in case, I wrote a brief history of the world from the time the missile exploded in the Pacific. It tells why ours is the worst possible of futures. It's in that box." "What do I do with it--hand it to the guy from the alternate 2089?"