"Cover her face; mine eyes dazzle."
- The Duchess of Malfi
My pal Carole back in Baltimore recommends the latest BBC adaption of Agatha Christie's The Pale Horse. A cursory search turns up the following, that the book it's based on was influenced to some degree by a contemporary of Christie's named Dennis Wheatley. He was a successful popular novelist at the time, his best-known book being The Devil Rides Out.
Wheatley, whom I've never read, wrote thrillers with a supernatural twist - Satanism, black magic, the paranormal - none of which he apparently put much credit by. He was a sometime acquaintance of Aleister Crowley, and published him at one point, but he doesn't seem to have taken him too seriously. The interesting thing, to me, is the idea of using supernatural themes, whether it's demonic possession or a ghost story, as a counterweight to the rational or the orderly.
This surfaces in Christie, in John Buchan, and in Conan Doyle, to pick major names. Holmes remarks more than once, phrasing it slightly differently, that once you eliminate the impossible, what's left, no matter how improbable, is what happened. The Hound of the Baskervilles generates a lot of its electricity by suggesting the otherworldly - is the dog a physical presence, a phantom, a psychological monster, the manifestation of some past buried evil: a curse, in other words? Kipling fools with it, Robert Louis Stevenson works similar earth, sowing dragon's teeth.
Conan Doyle caught a great deal of ridicule, later in life, for his embrace of spiritualism. Harry Houdini famously disabused him on any number of occasions, but Doyle's enthusiasm wasn't dented. It's an odd irony, we think, that this onetime student of Joseph Bell's (the model for Holmes), the careful exponent of logical argument and defining your terms, trusts a false premise and falls into further delusion. A reversal of the Holmes method, to allow a conclusion to affect your view of the evidence.
Agatha Christie was a master of psychological horror, before it was even recognized as such. Daphne du Maurier comes close, but by the time Rebecca came along, the genre was established. The effect that Christie manages, and almost without fail, is to make you doubt the convention of the narrative. In other words, she gives you the building blocks, using much the same method as Dorothy Sayers or Ngaio Marsh, but you begin to mistrust the design, that in fact the pieces can be assembled in quite the opposite order, or the story turned back to front. Her last published novel, Sleeping Murder, puts all three elements into play, the frisson of the paranormal, the psychological night sweats, and a narrative at right angles to itself.
The story turns on buried memory, and the tension between whether it's actual or imagined. When the weight of memory breaks through the firewall of post-traumatic stress, the "sleeping" murder comes out of hiding. The uncertainty lies in whether you think the heroine is haunted, perhaps literally, traumatized by some childhood nightmare, or just plain nuts. Any one of the three will serve. Christie is entirely at home with these Gothic fugues, and even the confident and resourceful presence of Jane Marple isn't in itself enough to shake your sense of dread. Christie of course contrives a deeply spooky reveal, and you want to go around the house afterwards turning all the lights on.
There's something enormously satisfying about this class of mystery, and the Brits seem to manage it better than anybody else. Christie, like Sayers or du Maurier, and P.D. James, for that matter, is writing novels of manners, often brittle and generally bad - the manners, not the novels. In some sense, they're comfort food, but the best of them leave you uneasy. The era between the wars, seen at a comfortable distance, seems not so far off or foolish. The ghosts are real enough.