1949: the celebrated Russian author Boris Pasternak is writing the novel that will become Doctor Zhivago. The Soviets, afraid of its subversive power, ban it. But in the rest of the world it is fast becoming a sensation. In Washington DC, the CIA is planning to use the book to tip the Cold War in its favour. However, their agents are not the usual spies. Two typists are charged with the mission of a lifetime: to smuggle Doctor Zhivago back into Russia...

She used to work for the US government, but very few people ever knew that. An expert in her field, she was one of the darkest secrets of an agency so clandestine it doesn't even have a name. And when they decided she was a liability, they came for her without warning. Now she rarely stays in the same place or uses the same name for long. They've killed the only other person she trusted, but something she knows still poses a threat. They want her...

In 1940, eighteen-year old Juliet Armstrong is reluctantly recruited into the world of espionage. Sent to an obscure department of MI5 tasked with monitoring the comings and goings of British Fascist sympathisers, she discovers the work to be by turns both tedious and terrifying. But after the war has ended, she presumes the events of those years have been relegated to the past for ever. Ten years later, now a producer at the BBC, Juliet is unexpectedly...

One December night in 1942, a Nazi parachutist landed in a Cambridgeshire field. His mission: to sabotage the British war effort. His name was Eddie Chapman, but he would shortly become MI5's Agent Zigzag. Dashing and louche, courageous and unpredictable, the traitor was a patriot inside, and the villain a hero. The problem for Chapman, his many lovers and his spymasters was knowing who he was. Ben Macintyre weaves together diaries, letters, photographs,...