Hunting Evil: The Nazi War Criminals Who Escaped and the Quest to Bring Them to Justice is a non-fiction book by Guy Walters. After World War II, the hunt was on for runaway Nazis. It is commonly believed that the operations ODESSA and Spider existed to help them escape, but no such things existed according to the book. The book details Nazis that were put on trial and others that were not. The Jewish Chronicle reported on the author's belief that Simon Wiesenthal has contradictory claims.