Neverwhere

Richard Mayhew is a plain man with a good heart—and an ordinary life that is changed forever on a day he stops to help a girl he finds bleeding on a London sidewalk. From that moment forward he is propelled into a world he never dreamed existed—a dark subculture flourish in abandoned subway stations and sewer tunnels below the city—a world far stranger and more dangerous than the only one he has ever known. . .