In this novella, Juan Morales is back! After the baffling case of the six missing choirboys and the tragic revelations surrounding the death of his brother, the priest Father Rodrigo, Morales is faced with his strangest case yet, as a vacation with his best friend in Mexico City leads him into a world of human sacrifice, ancient Gods, and a relationship with the beautiful archaeologist Sophia Kanakarides. When Sophia goes missing Morales and his friend Francisco Tamayo face a race against time to save her from the knife of the High Priest of the Old Religion.