Think of Dennis Wheatley, and you think of the Devil. That may not be wholly fair; of the dozens of trashy adventure and thriller novels Wheatley churned out over the course of his career, only a minority actually deal with the occult. In fact, that’s true even of his series about the Duke de Richleau, despite that series including the most famous of his Satanically-themed novels, The Devil Rides Out.
Nonetheless, whilst most of Wheatley’s output has largely been forgotten, his occult-themed stories are what his name is largely associated with. It probably helps that the Hammer adaptation of The Devil Rides Out is, for all its faults (most of which arise from it being too true to the original book), one of the more enduringly-fun Hammer releases. Another factor might be that Wheatley’s views on the occult were absolutely bizarre, tied in as they were with his hyper-conservative views, with the result that they stand out all the more.
Whilst often you can glean aspects of an author’s worldview from their fiction – sure, people say you should separate the writer from the material, but if someone consistently, over the course of their entire career, writes women like trash and shows no sign that they are using techniques like unreliable narrators or whatever which means we shouldn’t take the narration at face value, you can draw a few conclusions from that. In the case of Wheatley, however, we don’t need to speculate about his actual beliefs on the occult: late in his career he write The Devil and All His Works, a coffee-table book combining his views on the subject and on spirituality in general with a fantastic collection of photographs (including the standard mildly titillating nudity expected of books on witchcraft from the 1970s).