3 Days, 9 Months, 27 Years (The Time Traveler's Passport)

A time travel technician must step away from the controls and take action in a twisty short story where timing is everything, by New York Times bestselling author John Scalzi.

Time travel is real—and used for high-end tourism. Every moment of the past is open to visitors, and no matter what they do then, everything now waits for them, thanks to the sure hand of an experienced time travel technician. Come spend a day behind the controls of the time machine, and discover why, this day of all days, it’s time for this technician to make a change. Because sometimes, time travel is more than just an adventure. Sometimes, it’s a moral imperative.