Sylvia Fontis at Luna University has built a working time machine—she calls it the
Dimensional Revolver—but she’s too scared to use it until Professor Kent comes up with an
idea for an experiment.
So what did you do, bring back the results of the Centauri Probe? Kill your grandmother?
DEBUT
“Stretch of Time,” in Analog,October 1972.
VARIANTS
Debut. “Stretch of Time,” in Analog,October 1972.