Anya Vidal died of poisoning, in the middle of a spiritualist séance, in the inn run by Marquand's mother. Was it really his brother's spirit that moved the glass? Is it the medium or one of the hosts? In Joséphine Marquand's work, suspects are as unhelpful as spirits... For Alice, conducting an investigation of flagrancy should not prevent her from meeting her future mother-in-law serenely...
