“Crowley’s Veil: Shadows of the Magus” examines two sites central to Aleister Crowley’s magical career. Boleskine House represents his attempted Abramelin operation, intended to attain Knowledge and Conversation of the Holy Guardian Angel. The Abbey of Thelema in Cefalù represents his later experiment in communal Thelemic life, organised around ritual, yoga, solar adoration, and the discovery of True Will.