This is a passenger announcement. You can now book your train on Uber and get 10% back in credits to spend on Uber eats.

So you can order your own fries instead of eating everyone else's.

Trains, now on Uber. T's and C's apply. Check the Uber app. We all know about Philby, McClain, Burgess and Blunt. But there's one Soviet spy

as important as any of them who very few of us have even heard of.

There she was with her three children, she baked extremely good scones, as far as anyone was concerned

she was a perfectly ordinary citizen.

In the privy in the back garden, she installed a powerful radio transmitter

with which she was communicating with Moscow.

The last thing that MI5 wanted to believe was that they had an active

spy in the Cotswolds.

To her family she was Ursula Kuchinsky. To her neighbours Mrs Burton and to the Soviet

Intelligence Services Agent Sonia, Colonel in the Red Army and her story is one of

the most fascinating of all.

We tend to look at history increasingly these days as a kind of monochrome moral accounting,

good, bad, who, hurrah, you know, these people were good, these people were bad, and actually history is much more complicated and much more interesting

than that.

You're listening to stories of our times from the Times and the Sunday Times.

I'm David Ronovich. Today, Red Sonia, the

Kotzwald Super Spy. I'm Ben McIntyre, I am Associate Editor and a columnist on The Times, but at the same time I write books about

Espionage.

Ben McIntyre has written for The Times for 25 years reporting from New York, Paris and Washington, but before journalism

a far more discreet profession beckoned.

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