As Nazi Germany raced to build its last-ditch “wonder weapons,” one experimental rocket fighter stood out: the Bachem Ba 349 Natter, a vertical-launch, disposable interceptor unlike anything the world had seen. But when its final test flight ended in a shocking crash, the truth behind what happened remained shrouded in secrets—until whispers of a hidden spy emerged. Behind the barbed wire and mountain bunkers, Allied intelligence had eyes where Germany least expected. According to long-buried ac