Pratchett Terry: Thud! (Discworld Novel #34)
Thud! (Discworld Novel #34) - Terry Pratchett. Koom Valley - that was where the trolls ambushed the dwarfs, or the dwarfs ambushed the trolls. It was far away. It 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, ...a dál?