Back in Brittany, Captain Morgane Ledantec is confronted with the discovery of human bones after the fall of a sacred oak during a storm. The victim was a follower of druidism which Morgane was introduced to as a teenager by her godmother.

Back in her home Brittany, Morgane Ledantec, Captain of Gendarmerie, is confronted with the discovery of human bones after the fall of a sacred oak during a storm. The victim was a follower of druidism which Morgane was introduced to as a teenager by her godmother, the troubling Katell. Gifted with a sometimes disconcerting capacity for prescience that she has always concealed and which will gradually awaken over the course of the investigation, Morgane will have to reconnect with her childhood friends who all seem to have something to hide.—Happy_Evil_Dude