Very little of Britain’s secret war has escaped the attention of Dr Helen Fry. Born in 1967, she is an English historian, biographer and broadcaster who has built a career on the wartime intelligence world, and she has written or edited a great many books on it, several of which opened up files that had been quietly ignored for decades.
Two strands run through the work. One is espionage proper: the listening operation at Trent Park, where captured German generals were bugged over brandy, the interrogators of the London Cage, and the women whose intelligence careers had been written out of the official accounts.
The other is personal in origin. Fry has documented the ten thousand German and Austrian Jewish refugees who fought for Britain against the country that had expelled them, a subject she returned to repeatedly and which gives even her most technical books a strong moral undertow. She appears regularly on television documentaries as a result.