This story is true ... Most of it. The German, 'Mr. Kai' and The Devil is a fictionalized version of a man's Faustian Bargain with the Japanese Consulate in Honolulu prior to the attack on Pearl Harbor. It's the story of how he and those in and out of government had what others dream of having: the opportunity to change history. It's a story that leaves the reader haunted by the song unsung: What if the Honolulu FBI had acted on its suspicions and questioned the German? What if American intelligence-because the FBI had done its job-needn't have relied on code breaking or a prompt reading of intercepts to fathom Japanese intentions? What if the administration had prior knowledge of an attack because the FBI had done its job and informed American intelligence of Japan's plans? What if Japan had decided not to attack Pearl Harbor because the Honolulu FBI had arrested their German agent? And why has history blacked out-redacted-his role as though he never existed? It is the curious case of the spy who never was and a song unsung