Rincewind, a cowardly wizard, is the only one who can save Discworld as it falls slowly towards a red star.

One moment, Sir Sam Vimes is in his old patrolman form, chasing a sweet-talking psychopath across the rooftops of Ankh-Morpork. The next, he's lying naked in the street, having been sent back thirty years courtesy of a group of time-manipulating monks who won't leave well enough alone. This Discworld is a darker place that Vimes remembers too well, three decades before his title, fortune, beloved wife, and impending first child. Worse still, the murderer...