Published first in Brazil as Suastica sobre o Brasil, Stanley Hilton's examination of the rise and fall of German espionage in that country during World War II spent months on the best-seller list there and generated a national furor as former spies and collaborationists denounced it as a CIA ploy. Hitler's Secret War in South America resembles, but is not, fiction. It describes in detail the Allies' real battle against the Abwehr, a struggle highlighted by the interception and deciphering of German radio transmissions.