The 27th novel in the phenomenally successful Discworld series.

Commander Sam Vimes of the Ankh-Morpork City Watch had it all. Then the lightning struck and now he's back in his own rough, tough past without even the clothes he was standing up in. Living in the past is hard. Dying in the past, however, is incredibly easy.

But he must survive, because he has a job to do: he must track down a murderer, and teach his younger self how to be a good cop. He must also change the outcome of a bloody rebellion. There's a problem: if he wins, he's got no wife, no child, no future.

This is a Discworld "Tale of One City", with a full chorus of street urchins, ladies of negotiable affection, rebels, secret policemen and other children of the revolution. Truth! Justice! Freedom! And a hard-boiled egg!