From the author: "Grady Louis McMurtry (1918–1985) aka Frater Hymenaeus Alpha 777 Xth Degree OTO learned sex magick directly from Aleister Crowley, who acknowledged in his diary on December 22nd, 1944 that he taught Grady “more solid instruction in IX than I ever gave before to any one! I was Grady's perwonal student, and I was lucky enough to have insights into these teachings. I hasd been an Upper Degree in both OTO and A.A. since the late 1970s, having studied Aleister Crowley's writings for over ten years even prior to joining."

“This book contains what I learned about the sexual secrets found with the OTO from Grady himself, and I guarantee it’s NOTHING like what you’d expect or what other books are saying. Some of you might argue that it is blasphemous to reveal these mysteries, but Crowley has stated that one of the reforms which he introduced to the world “was the abolition of all obligations of secrecy. They were never useful except as temptations to people to break them. The secret knowledge has quite adequate warders. I have learnt that I have only to tell the truth about almost anything to be set down at once as a liar. It is far better to throw dust in the eyes of the animals whose faces are turned to the ground, by casual frankness."

At the end of the book Cornelius presents an essay called "ON TRINC" which features an in-depth discussion on the "special drink" found in Rabelais's book Gargantua and Pantagruel which reveals the secrets of the IXth degree of O.T.O.

This copy is from the collection of Thelemic author Robert C. Stein (1931 – 2024), who wrote "The Mystery of the Letters and The Tree of Life" and other works. Stein was a Professor Emeritus of Biology in the New York State University System, whose involvement in the study and practice of Thelema spanned three decades and travels in five continents.