Neverwhere
Neverwhere is a 1996 urban fantasy novel by British author Neil Gaiman. It presents London in two realms: the familiar London Above and a hidden, subterranean London Below populated by the city’s forgotten people and magical beings. The story follows Richard Mayhew, an ordinary Londoner whose life is upended after he stops to help a young woman named Door. By aiding her, he becomes socially invisible to the world he knows and is pulled into London Below, where he must navigate its dangers and politics.
Richard is soon joined by a cast of outsiders, including Door herself, the enigmatic Marquis de Carabas,
Neverwhere is known for its blend of fairy-tale elements with gritty urban imagery and its exploration of