The Fortunate Ones: Beautiful and heartbreaking World War 2 historical fiction

Every day he stood exactly where he was directed. He listened for his number, shouted his answer in the freezing cold. He was ragged and he was starving, but he was alive. He was one of the fortunate ones whom fate had left standing. And he needed to stay that way. For Hannah. Berlin, 1941. Felix Thalberg, a printer's apprentice, has the weight of the world on his shoulders. His beloved city is changing under Nazi rule and at home things are no better - Felix's father hasn't left the house ...