As with most of my work, there is a lot of fact mixed in with this fictional tale.
Belle Époque Paris is painted as close to the truth as the story allowed. There was in fact a very strong occult moment in France during the time, and there is a large body of literature written about the sometimes frightening and wild cults, believers, and experimenters. The nightclubs all existed as I describe them, as did the streets, restaurants, cafés, sights, Dr. Blanche’s clinic in Passy, and all the stores, including the fabulous Sennelier art supply store, and the Librairie du Merveilleux, owned and run by Pierre Dujols. The École des Beaux-Arts is still one of the finest art and architecture schools in the world, and women were not allowed to attend until 1897-though in my novel I move that date forward three years. The painter Gustave Moreau was a teacher there in 1894, and Henri Matisse was one of his prize pupils. The art world and anecdotes about now famous painters and the École’s salon are all based on source materials. Last but not least, Jews, especially Kabalists, do hold exorcisms to banish dybbukim and various kinds of demons, and the ceremony portrayed in this novel follows the ancient laws.
I am especially indebted to my researcher, Alexis Clark, who saved me from hours of going down the wrong path and gave me insights and facts into the world of Belle Époque Paris and her artists, which allowed me to spend more time in my imagination than in the library and online.