Geoffrey Sykes Vermillion, occult detective and master of the acrane, is joined by his spirited young protege Audrey Hawkwoode and longtime friend and colleague   Allegra Barlow, mistress of Anubis Lodge in The Case of the Signet Ring. A young widow is deeply troubled by the memory of her late husband whose revolting proclivities won’t stay buried in the past. Will the presence of the notorious Aleister Crowley help the cause, or muddy the waters? Is everything as it seems in this twisted tale?