Nicholas Rankin worked 20 years for BBC World Service, winning two UN awards and ending up as Chief Producer. His previous books include biographies of Robert Louis Stevenson and the war-correspondent George Steer, Churchill’s Wizards, a study of camouflage, deception and black propaganda in both world wars, and Ian Fleming’s Commandos, the history of a WW2 naval intelligence unit. He is a Fellow of the Royal Society of Literature and lives in London and Kent.