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 he's pursuing has been transported back also. Worst of all, it's the eve of a fabled street rebellion that needlessly destroyed more than a f