Colin Campbell took his Minerval degree in O.T.O. in early 2001, and is an ordained priest of Ecclesia Gnostica Catholica, a chartered initiator, and the current and founding body master of Abrahadabra Oasis in Portland, Maine. He is also the author of several books, including A Concordance to the Holy Books of Thelema and The Magic Seal of Dr. John Dee: The Sigillum Dei Aemeth, as well as supplying the editing and introduction to Fredrick Hockley’s The Offices of Spirits. He has given several presentations on various esoteric topics at the National O.T.O. Conference (NOTOCON), as well as regularly presenting lectures across New England.