Lockstep

Seventeen-year-old Toby McGonigal finds himself lost in space, separated from his family and the planet he's orbiting is frozen and sunless, and the cities are dead. But when Toby wakes again he's surprised to discover that he's been asleep for 14,000 years. Welcome to the Lockstep Empire Toby is shocked to learn that the Empire is still ruled by its founding family: his own. Toby's brother Peter has become a terrible tyrant. Suspicious of the return of his long-lost brother, whose rightful inheritance also controls the lockstep hibernation cycles, Peter sees Toby as a threat to his regime. Now, with the help of a lockstep girl named Corva, Toby must survive the forces of this new Empire, outwit his siblings, and save human civilization.