Death of a Selachii
There are many Vampires in Ankh Morpork though they originate from the Uberwald area. Those living in the city are usually members of the The Uberwald League of Temperance whose motto is "Not a single drop". Members of the League forego drinking human blood and instead sate their hunger with the acme of the butcher's art, they also control the urge to rip out people's throats by taking up hobbies such as making models of human organs out of matchsticks or indulging in habits such as smoking.
Vampires are incredibly strong, though not as strong as Trolls, and very intelligent though they are plagued by neuroses such as a fear of religious symbols. They are also very sensitive to bright light which if too strong will cause them to crumble to dust, however a few drops of blood will resurrect them. Many carry a glass vial of blood around their necks so that if they do crumble the vial will break and they will resurrect automatically, alternatively they may carry a card that says "Please help, I have crumbled and I can't get up. I am a member of The Uberwald League of Temperance and will not harm you".