Sister  by Kjell Ola Dahl, translated from Norwegian into English by Don Bartlett, is a book I read recently that mentions indexes. Sister  is part of the Oslo detectives series and focuses on the detective Frank Frølich. He was suspended from police duty and is working as a private investigator. He is approached by his girlfriend’s colleague to help find the sister of a female asylum seeker. The asylum seeker wants to find her sister to avoid being deported by the authoritie