The Samaritan's Secret — Matt Beynon Rees

Omar Yussef journeys to Nablus with his family for the wedding of his policeman friend Sami Jaffari. Omar had met Sami and his fiancee on a previous trip to Gaza. When the son of the leader of the Samaritan community is murdered, Omar is pulled into Sami's investigation. They learn that the victim worked for the Palestinian Authority and controlled hundreds of millions of dollars which is now missing -- and the World Bank is threatening to cut off all aid to the Palestians if the money is not found. Omar and Sami must navigate through the dark warrens of the Nablus casbah and the secrets of the Samaritan people to find the killer and recover the missing funds before time runs out.