Megan Daley
July 31, 2015 AT 02:52 PM EDT

J.K. Rowling brought the tales of her beloved characters to fans all across the world, creating an intricate, magical world for readers to fully immerse themselves in. But now, the Harry Potter author has a few questions about her own story in an upcoming episode of TLC’s Who Do You Think You Are?

In this clip, Rowling – who began the journey wanting to learn more about her French roots – discovers that following a wartime invasion by German soldiers, her family had a risky, life-altering decision to make. Do they become German, or remain French and be forced to pick up and leave the only life they’d ever known? 

See the full clip above. Who Do You Think You Are? airs Sundays at 9 p.m. ET on TLC. 

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