The final book in Dolores Redondo's atmospheric Baztan trilogy, featuring Inspector Amaia Salazar. With masterful storytelling and a detective to rival Sarah Lund, this Spanish bestselling series has taken Europe by storm. In Pamplona, capital of Navarra, Amaia Salazar is called in to investigate the death of a baby girl. The baby has red marks on her face, indicating she has been murdered. According to the girl's grandmother, the father tried to run away with the body, uttering something about an offering. She also mentions the Inguma – an evil being of Basque mythology that kills people in their sleep. The investigation takes Amaia and her team to the nearby valley of Baztan, where there have been an abnormally high number of similar cases – and some procedural irregularities. Meanwhile a murderer, Berasategui, is found dead in his cell from a drug-induced coma, which he can't have done without help. Soon Amaia will have to face the true origin of the events that have ravaged the Baztan valley for years – even if an impressive snowstorm tries to bury the devastating truth.