Working for an alien time cop, Mattias jumps through fixed wormholes in time, heading to medieval France, North America in the last ice age, ancient Egypt, 17th-century Persia, and probably a few other places that he and I are having trouble remembering. We both need a vacation.
It took most of Isaac Newton’s Principia to snap him out of it.

Variants

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  1. “Many Mansions” by Alexander Jablokov, in Asimov’s Science Fiction, May 1988.
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Alexander Jablokov