Aleister Crowley and Dion Fortune were two of the most controversial and influential magicians of their day. Crowley was regarded by many as a creature of the night whose soul was admittedly streaked with brilliance; Fortune was regarded as one of the Shining Ones, who nevertheless wrestled with her own darkness. Between them they produced some of the best books on occultism ever written, and their influence upon contemporary magicians has been profound, though often unrecognized. Written by an occult scholar, this unusual and provocative book draws upon unpublished material to reveal little-known aspects of Crowley and Fortune's relationship, their influence upon the Wiccan movement, goddess traditions and sacred sexuality, earth magic, modern magick, and many surprising aspects of our present culture.