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From Alan Gratz, the #1 New York Times bestselling author of Refugee, comes this wrenching novel about one boy's struggle to survive ten concentration camps during the Holocaust. Based on the inspiring true life story of Jack Gruener.

10 concentration camps.

10 different places where you are starved, tortured, and worked mercilessly.

It's something no one could imagine surviving.

But it is what Yanek Gruener has to face.

As a Jewish boy in 1930s Poland, Yanek is at the mercy... Read Full Overview