 What would've happened if Simon had said yes to the job at the end of the story?
He looked over at Betty and said, almost as though reciting, "What I need is a vacation." "Providence," Simon told her whilst fiddling with the aspirin bottle, "will provide." Something where you could deduce that actually the ruby ring had gone down the drain and was caught in the elbow. The client fussed himself with Betty's assistance into the seat, bug-eyed Simon, said finally, "You know my name, that's pretty good. When Simon continued to say nothing she ventured, "Time travel is impossible." Suppose you had a time machine and traveled back a hundred years or so and killed your own great-grandfather. "Then you'll realize that there are a dozen explanations of the paradoxes of time travel. It's my contention that within a century or so man will have solved the problems of immortality and eternal youth, and it's also my suspicion that he will eventually be able to travel in time. Simon seemed incapable of carrying the ball this morning, so Betty said, "But ... Mr. Oyster, if the future has developed time travel why don't we ever meet such travelers?" "The usual explanation, Betty, is that they can't afford to allow the space-time continuum track to be altered. If, say, a time traveler returned to a period of twenty-five years ago and shot Hitler, then all subsequent history would be changed. In that case, the time traveler himself might never be born. Simon said, "You want to hire me to find a time traveler and in some manner or other—any manner will do—exhort from him the secret of eternal life and youth, which you figure the future will have discovered. Now she said, plaintively, "But where are you going to find one of these characters—especially if they're interested in keeping hid?" You could be a four-armed space traveler from Mars, and you still wouldn't be conspicuous at the Oktoberfest . People would figure they had D.T.'s." If you could go back a few thousand years, the things you would wish to see would be a Roman Triumph, perhaps the Rites of Dionysus, or one of Alexander's orgies. "No ma'am, you'd have to stick to some great event, both for the sake of actual interest and for protection against being unmasked." You can take the plane to Munich, spend a week there and—" Simon was shaking his head.
 He would have returned right back to the office soon after he left for the airport, but with a worse hangover.
 He would have returned right back to the office soon after he left for the airport, but with a worse hangover.  He would have stayed at home and pretended to travel to Germany for the sake of his client.  He would have gone to Germany for the 16-day festival and looked for time travelers.  He would have brought Betty with him to Germany to help him find time travelers.