I recently discovered that there's a top-notch used bookstore here in town, and bought a bagful of old horror paperbacks. Basically, I snagged anything that had words like Devil, Satan, or Lucifer in the title.
The first one I read was Next, After Lucifer
by Daniel Rhodes--a tale of demons, medieval black magic, and spirit possession in southern France. A bit of a slow burn, but with a satisfying climax.
One of the most interesting things about it is the way it anticipated the current obsession with the Knights Templar, decades before Dan Brown. An American professor of medieval history buys a villa, and investigates the legends around the Bluebeard-like Templar who used to reside in a nearby ruined castle. Only to discover that the legends are true
Man--I wish I could afford a villa in southern France. Sounds like a fun place.
Now I'm reading the sequel, Adversary