The most influential magical group in Germany during the 20th century, the Fraternitas Saturni, or Brotherhood of Saturn, is still the most active and important magical society in Germany today. But from its formal beginnings in 1926 in Weimar Berlin until around 1970 it was almost totally secret. Most of what is known about the Order in the English-speaking world is fragmentary and focuses exclusively on the sensational sex-magic practices and Luciferian tendencies of this magical lodge. Explaining the meanings of all 33 grades of the Order, the author also looks at the infamous Freemasonic Order of the Golden Centurium, the cult of Adonism, the links between Thelema and the Fraternitas Saturni, and the rare teachings of Master Pacitius (Albin Grau), the visual genius behind the film Nosferatu. He also includes rare reports by Aleister Crowley concerning his interaction with some of the forerunners to the Order and letters from the Order’s founder, Gregor A. Gregorius, to the “Great Beast.”