This is indeed a rare gem: an untold story of an unknown spy, one who was MI6’s top secret agent in Nazi Germany from 1931 to 1939.

Baron William de Ropp (Bill) had direct access to Hitler and an inside track on the Nazi regime. His reports, shrouded in secrecy, had the power to shape British policy toward Germany in a pivotal period of history.

Discovering the story of this hitherto unsung hero is like taking a journey into the shadows of Germany between the wars, where a forgotten British spy was working tirelessly to avert catastrophe, and there unearthing a treasure trove of the secrets that history almost left behind.

Bill de Ropp’s story has never been published in full before. Tim Willasey-Wilsey has drawn on his years in the Foreign Office to uncover this riveting tale of espionage, intrigue, and the impact of one man’s secret mission on the course of history.

‘An insider’s view of this outstandingly effective but enigmatic British spy.’