This is a compendium of the occult and the supernatural which attempts to survey the entire subject area. Covering aspects from ghosts, poltergeists, reincarnation, precognition and psychic detection to magic and demonic possession. It includes full explanations of such mysteries as Atlantis, ley lines, UFOs, crop circles and Velikovsky's worlds in collision theory of the origins of the planet Venus. Also included are biographies of famous occultists such as John Dee, Cagliostro, Rasputin, Madame Blavatsky, Gurdjieff and Aleister Crowley. From the author of The Outsider, Poltergeist, The Psychic Detectives and Men of Strange Powers.