I Am Pilgrim, Paperback/Terry Hayes

It is a textbook murder - and Pilgrim wrote the book. Pilgrim will have to make a journey from a public beheading in Mecca to a deserted ruins on the Turkish coast via a Nazi death camp in Alsace and the barren wilderness of the Hindu Kush in search of the faceless man who would commit an appalling act of mass murder in the name of his God.