When a Wiccan comes to Three Pines, Gabri can‘t help himself to connive her into doing seances. When the second one is held at the haunted old Hadley house, one of the participants literally dies of fright. Inspector Gamache and his entourage come to town to sleuth their way to an answer, while he also deals with some stabbing behind his back by Arnot supporters. We finally learn a lot more about how Gamache took down the popular inspector.