Based on the life of Jack Gruener, this book relates his story of survival from the Nazi occupation of Krakow, when he was eleven, through a succession of concentration camps, to the final liberation of Dachau. Interest Level: 5-8 Reading Level: 4.9 ATOS Book Level: 4.9 AR Interest Level: MG AR Points: 7 AR Quiz: 156573EN Reading Counts Level: 4.6 Reading Counts Points: 13 Lexile Measure: 760 Iowa Teen Award 2014 - 15.