Look at Xenu.com, old Crowley helped Parsons who helped L. Ron Hubbard.
Hubbard made his way to Pasadena, California, a scientific boomtown of the 1940s, where he met John Whiteside Parsons, a society figure and a founder of CalTech's Jet Propulsion Laboratory. A sci-fi buff, Parsons was also a follower of the English occultist Aleister Crowley. Parsons befriended Hubbard and invited him to move onto his estate. In one of the stranger chapters in Hubbard's life, recorded in detail by several biographers, the soon-to-be founder of Dianetics became Parsons' assistant -- helping him with a variety of black-magic and sex rituals, including one in which Parsons attempted to conjure a literal "whore of Babalon [sic]," with Hubbard serving as apprentice.Very interesting. Thanks.
What a tangled web the devil weaves.