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From Wondery, I'm Charlie Hickson, spy novelist, actor, comedian, and this is The Spy Who.

Thank you for joining us for our final episode of The Spy Who infiltrated Auschwitz.

It's a harrowing story, probably the hardest we've covered yet.

Polish resistance soldier, Vitold Pieletsky, voluntarily entered Auschwitz, and was

imprisoned there for nearly three years.

His mission was to build a network that could tell the world the truth about the camp.

But when his intelligence reached the Allied forces, nothing happened.

There was no rescue, no action.

So his mission changed.

He either had to accept death or escape in order to show the world the full horror of Auschwitz.

After his escape and after the war, life in Poland continued to be full of conflict. The Soviet

Union's power over Poland grew ever stronger. Vitold fought this communist takeover until May

1947 when he was arrested by the secret police. A year later, he was executed, and his story

was all but erased from history by Poland's

communist government. But the extensive report Vitold wrote about Auschwitz survived him,

and when the Soviet Union dissolved, his work came to light.

In this episode, I'm going to speak to Christoph Koshar, Vitol Pieletsky's great grandson.

Born in 1983, Christoph Koshar, Vitol Pieletsky's great-grandson.

Born in 1983, Christophov learned about Vitol through stories told by his grandmother Zofia,

Vitol's daughter, and his great-grandmother Maria, Vitol's wife.

You've been through one diet after another, maybe for years. You've counted calories, pushed through workouts, cut carbs, and still the weight came back. It's exhausting. You've been

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