The anniversary of the Battle of Koom Valley is looming. Everyone knows this was the great battle where the dwarfs ambushed the trolls. Or the trolls ambushed the dwarfs. Tensions between Ankh-Morpork's dwarf and troll communities are rising, so this would be the worst time for a prominent city dwarf to be murdered by a troll. When this duly happens, it gives Commander Sam Vimes of the City Watch a major headache he could do without. Civil war, rioting, protests, urban unrest and delicate pol...
