# The Spy Who Infiltrated Auschwitz | Pilecki’s Great-Grandson on the Man Behind the Mission | 4

An episode of [The Spy Who](https://invisiblenetwork.ai/podcast/1728948939), 18 Feb 2025, 33 min.

Audio: https://rss.art19.com/episodes/7450b3ab-e63e-496f-8ffc-2c7621bbff9c.mp3?rss_browser=BAhJIhVJbnZpc2libGVOZXR3b3JrBjoGRVQ%3D--0761ee75eb25694efc17849092f8583c07f6c68b

Krzysztof Kosior was thirty when he first felt ready to visit Auschwitz. But since childhood, he had heard stories of his great-grandfather’s time there, and of his journey from unknown soldier to one of Poland’s greatest heroes. Talking to actor and spy novelist Charlie Higson, Krzysztof reflects on his family’s memories of Witold, and on the surprising struggles of those with the Pilecki name. Plus he takes listeners inside what happened when Witold met Tomasz Serafinski, whose identity he used during his time in the camp. Have you got a spy story you’d like us to tell? Email your ideas to thespywho@wondery.com EXCLUSIVE NordVPN Deal ➼ https://nordvpn.com/spywhoTry it risk-free now with a 30-day money-back guarantee! See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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