Caina is mentioned as being part of Treachery. Here, those who were traitors to their own bloodlines are immersed in the ice up to their faces. This place is named after Cain, who murdered his brother Abel in the Old Testament. It is mentioned by Francesca da Polenta, who says that her father resides here for killing her. It is not known when or if the player traverses Caina, as it is not indicated.