The English author Kate Mosse has published several books in which the action takes place in the south of France. "Labyrinth" where the scene is La Cite in Carcassonne and its successor "Sepulchre" starting in Paris and ending up in Rennes les Bains. A novel, a fiction, but with a good research behind. Several of the characters in the novel can be recognized on the streets of Rennes les Bains.
I have used the part of the story that takes place in Rennes les Bains, to make an illustrated guide to the village.