Seventh book of the original and best CITY WATCH series, now reinterpreted in BBC's The Watch 'Imaginative, witty and consistent' SFX The Discworld is very much like our own - if our own were to consist of a flat planet balanced on the back of four elephants which stand on the back of a giant turtle, that is . . . 'Beating people up in little rooms . . . he knew where that led. And if you did it for a good reason, you'd do it for a bad one. You couldn't say 'we;re the good guys' and do bad-guy things.' Koom Valley, the ancient battle where the trolls ambushed the dwarfs, or the dwarfs ambushed the trolls, was a long time ago. But if he doesn't solve the murder of just one dwarf, Commander Sam Vimes of Ankh-Morpork City Watch is going to see it fought again, right outside his office. With his beloved Watch crumbling around him and war-drums sounding, he must unravel every clue, outwit every assassin and brave any darkness to find the solution. And darkness is following him.