Under strict rules against smuggling technology, time-travel tourism is permitted to the residents of 2124 A.D., but, of course, when a tour guide tries to take modern technology to the nontechnical time of 4600 A.D., our man Denton Kels must bring the dastard to justice.

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Variants

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  1. “The Time Express” by Nat Schachner, in Wonder Stories, December 1932.
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Nat Schachner