In this chapter, Mihito explains the circumstances of the murder of his family. He is a medical coroner, and he has conducted an autopsy on the bodies of the five victims. He says that the skull is the most likely cause of death, but he is unable to say whether it is from a human or from some other animal. Mihio asks if he is looking for him, and akisato replies that he has been worried about him for a long time, and that he is glad to see him. They discuss the case of the family murder, which happened three nights earlier in the home of a father, mother, eldest daughter, and youngest daughter. The youngest daughter is missing, and the news reports are saying that she killed the entire family while sleeping