In the most brilliant city of the Disc World - Ankh-Morpork - things are again restless: the 200th anniversary of the Battle of Kuma is approaching. It was in the Kuma Valley that one ill-fated day, either the gnomes secretly attacked the trolls, or the trolls secretly attacked the gnomes. No, they have been at enmity since the creation of the world, but it was this battle that gave mutual hatred official status. It has become a historical explanation of why these little bearded/hulky lumpy bastards cannot be trusted. And this means that additional patrols must be introduced on the streets of Ankh-Morpork. However, saving the world and maintaining order is a common job for the inimitable Duke of Ankh. Oh yes, we also have to investigate the murder of a deep gnome, deal with new drugs on the streets of the city and, most importantly, read “Where’s My Cow?” to Young Sam at exactly six in the evening. You can't miss the last one.