Lyndal Roper. New York: Random House, 2017. 576 pages. (Hardback). Martin Luther: Renegade and Prophet” was written to coincide with the 500th anniversary of Luther’s famous act of nailing his 95 theses to the church door in Wittenberg, Germany. I started the book eagerly, excited to read more about the man who led the charge against Catholic teachings and practices…