Book is in French Serg Barkley has seen it all since he took up his position as a major crimes investigator sergeant for the Sûreté du Québec. So much so that his past investigations come back to haunt his sleepless nights months, even years after the fact. This time, the Mana Thompson affair disturbs the sergeant's sleep. According to those close to her, the fifteen-year-old had no reason to want to end her life and no one understands how she could have fallen into the Rivière des Prairies in Montreal. So why was her body found, washed up on the bank near Rimbault Park, without any apparent signs of violence? What happened ? And above all... who is guilty of this murder?