Crowley's most famous novel. A young girl is drawn into a magical war between two men and is forced to choose between them. The reader is taken through an incredible series of magical intrigues involving a Black Lodge. Written from personal experience, this work describes the methods and theories of modern magical practices. First published in 1917.

Aleister Crowley, born Edward Alexander Crowley, was a British occultist, writer, mountaineer, philosopher, poet, and mystic. He was an influential member in several occult organizations, including the Golden Dawn, the A∴A∴, and Ordo Templi Orientis (O.T.O.), and is best known today for his occult writings, especially The Book of the Law , the central sacred text of Thelema. He gained much notoriety during his lifetime, and was infamously dubbed "The Wickedest Man in the World."