Death of a Selachii
Gnolls are a strange and secretive race, no one has made a complete study of them though some believe they are related to Trolls. In Ankh Morpork they have found a niche cleaning the streets. This is due to their habit of collecting any refuse they find which they store on their backs, as such they tend to resemble walking mounds of rubbish. Though not adverse to conversation they tend to keep themselves to themselves.