Penumbra's 24-Hour Bookstore, but after a few days on the job, Clay discovers that the store is more curious than either its name or its gnomic owner might suggest. The customers are few, and they never seem to buy anything; instead, they "check out" large, obscure volumes from strange corners of the store. Suspicious, Clay engineers an analysis of the clientele's behavior, seeking help from his variously talented friends, but when they bring their findings to Mr. Penumbra, they discover the bookstore's secrets extend far beyond its walls.

    Caliban to King Kong, Edgar Allan Poe’s stories, the films of David Lynch, Beauty and the Beast, The Wizard of Oz, E.T., Richard Yates’s domestic realism, B-horror movies, and the fairy tales of Angela Carter—how such a short novel could contain all of these disparate elements is a testament to its startling and singular charm.

    For Gideon Mack, faithless minister, unfaithful husband and troubled soul, the existence of God, let alone the Devil, is no more credible than that of ghosts or fairies. Until the day he falls into a gorge and is rescued by someone who might just be Satan himself.Mack's testament - a compelling blend of memoir, legend, history, and, quite probably, madness - recounts one man's emotional crisis, disappearance, resurrection and death. It also transports you into an utterly mesmerising exploration of the very nature of belief.