Aleister Crowley and Dion Fortune were two of the most controversial and powerful occultists of the 20th century. Crowley was regarded by many as a creature of the night, albeit one whose soul was streaked with brilliance; Fortune was viewed as one of the Shining Ones, who nevertheless wrestled with her own darkness. Between them they produced some of the best books on magick ever written, and their influence upon contemporary magicians has been...