Years have passed since refugees from a ruined Earth took to space, eventually settling a new system of planets. Not only has science made the leaps necessary to allow time travel, but the process engineered a strange side effect - predicting your one true love.
Sixteen-year-old Kaia Vespasian is an apprentice to the Historians - a group charged with using time travel to document the triumphs and failures of the past - and she can't resist a peek at her long-dead soul mate in ancient Egypt.
Before she knows it, she's broken every rule in the book, and the consequences of getting caught could destroy more than just her new romance. But when Kaia notices a fellow classmate snooping around in a time where he doesn't belong, she suspects he has a secret of his own - and the conspiracy she uncovers could threaten the entire universe.
If her experience has taught her anything, changing history means facing the consequences. The Historians trained her to observe and record the past, but Kaia never guessed she might have to protect it - in a race across time to save her only chance at a future.