The Promise by Eva Schloss (author)

The remarkable true story of a young Jewish girl and her brother, caught in a world turned upside down by the Nazis. Eva and her brother Heinz live happily in the beautiful city of Vienna – until war breaks out. Hunted for being Jews, with no choice but to hide, she and Heinz must put their faith in a special promise… Telling the true story of a Jewish girl who survived the horrors of Auschwitz, this is a moving tale of courage set amid some of history’s most tragic events.