Under the streets of London there's a world most people could never even dream of. A city of monsters and saints and murderers and angels. Richard Mayhew finds out more than he bargained for about this other London when an act of kindness catapults him into a world that is at once eerily familiar and yet utterly bizarre. There's a girl named Door, an Angel called Islington, a Beast in a labyrinth, and dangers and delights beyond imagining... And Richard, who only wants to go home, will discover his destiny waiting for him below the streets of the city.