Agent Sonya: The Spy Next Door

Ben Macintyre (Penguin Random House, NY)

4.5 out of 5.0 stars

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What’s it about?

It’s the fascinating true story of Ursula Kaczynski — code name Sonya — who spied for the Soviet Union before, during and after World War II. Despite being Jewish, she became an avowed communist, going on to spy for the Soviets in China, Poland, Switzerland, and the UK.

What was her biggest impact?

Without doubt, her most devastating contribution to the Cold War was the work she did in running Klaus Fuchs, one of the expert western scientists building the atomic bomb. The material Fuchs provided enabled the Soviets to catch up and build their own atomic weaponry.

A fascinating true spy story

Was she ever caught?

No. The book brings to light the shocking incompetence of the spy catchers in MI5. They consistently missed meaningful clues and failed to capitalize on the opportunities that came their way. Ultimately, after Klaus Fuchs was caught and Ursula knew that her cover was almost certainly blown, she fled to East Germany where she made her new home for the remainder of her life. She died in her eighties in 2000, an acclaimed Soviet hero.

What was the most shocking part of the book?

One might assume that it was the many affairs and lovers she had but that wasn’t it. It was the fact that she continued to believe in communism long after it had become clear to her that it was a failed philosophy. In East Germany she saw first hand the devastating consequences of the communist system in action and yet she still believed.

Most powerful quote?

“She spent her adult life fighting for something she believed to be right, and died knowing that much of it had been wrong” (Chapter 24).

Was it worth reading?

Absolutely. Ben Macintyre is a brilliant writer. The book is incredibly well researched and is a fascinating read. There are parts that get a little dry to read but they are nonetheless important parts of the overall story. Ultimately, it’s an amazing account of the critical role that Sonya played in Cold War history and the way in which the great minds of the spy world overlooked her, largely because she was a woman and a mother.