Narrowly evading arrest when a letterbox was blown, HQ, suspecting a double agent, told her not to contact anyone. Meanwhile, Vera continued to recruit women agents - finding Violette Szabo.

Given the codename Johnny O'Brien by his Nazi paymasters, to MI5 he was known as Agent Snow Helped crack Germany's Enigma military codes Seen by Nazis as a master spy, he enabled MI5 to capture ...