Men at arms

"Times are a-changing in Ankh-Morpork's Night Watch. New recruits have been hired to reflect the city's diversity, including Corporal Carrot (technically a dwarf), Lance-constable Cuddy (really a dwarf), Lance-constable Detritus (a troll), and Lance-constable Angua (a woman ... full moons aside). What's more, Captain Sam Vimes is getting married and retiring from the Watch. For good. Which is a shame, because no one knows the streets of Ankh-Morp...