In 1963, Grimston, then known as Robert Moore and Mary Ann Lean had met at the Hubbard Institute of Scientology, on Fitzroy Street, London. Both were training to be "auditors". They married soon after, and in 1964 left Scientology to set up their own system, Compulsions Analysis. They also adopted the name de Grimston. In 1966 (the same year LaVey also inaugurated his Church of Satan in San Francisco), the cult decamped to Xtul, Mexico, on the north coast of Yucatan. There they apparently discovered Satan. Returning to London in 1967 and funded by a member's inheritance, they turned their Mayfair mansion into a Satanic palace, with all-night coffee bar, movie house and book store, where they sold issues of their magazine, The Process, devoted to Hitler, Satan and gore. Processeans went around in black capes, turtlenecks and silver crosses. They held telepathy classes and preached the coming apocalypse. They approached pop musicians as possible converts. Mick Jagger's then-girlfriend Marianne Faithfull posed in the infamous 'Fear' issue of The Process magazine in 1967. The legendary bandleader Graham Bond got also involved with The Process and died in mysterious circumstances under a tube at Finsbury Park station. Late '67 The Process hit the States, in LA sidling up to members of the West Coast rock establishment -- and Charlie Manson r o s e m a r y - the connection between mia farrow, sharon tate, charlie manson and the beatles