Lucifer's Power: Beliefs and Practicesof the Process Cult offers a riveting exploration into oneof the most mysterious and influential cults of the 20th century. Founded inLondon in 1963 by Mary Ann MacLean and Robert de Grimston, The Process Churchof the Final Judgement emerged from a scientology-inspired psychotherapy groupand quickly became a cultural phenomenon before its dramatic split in 1974.

What did The Process truly believe? Their secretive nature kept many in thedark, but sociologist William Sims Bainbridge gained unprecedented access tothis elusive group. As a young researcher in the late sixties, Bainbridgeearned the trust of the Processians in Boston, becoming the only non-member towitness their rituals and practices firsthand. His rare and sought-after book, Satan'sPower: A Deviant Psychotherapy Cult (1978), first unveiled hisgroundbreaking findings.

Now, fifty years after the cult's decline, Bainbridge revisits and expandsupon his seminal work in Lucifer's Power. This updatededition uncovers the motivations of The Process's members, reveals theirintricate beliefs and rituals, and explores the cult's enduring legacy andinfluence. Packed with new material and never-before-seen historicalphotographs taken by Bainbridge during the height of The Process's popularity,this book provides a comprehensive and compelling look into the world of TheProcess Church of the Final Judgement.