Gudrun Pausewang 
Traitor [PDF ebook] 

An enemy is hiding in Anna’s barn-a Russian prisoner of war on the run from the Nazis. Only Anna knows he’s there. If she turns him in, he’ll be shot. Anna can’t bring herself to cause another person’s death-especially when she’s questioning her own feelings about the Nazi regime. But if she hides him, she’ll be a traitor to Germany, and for that, she could be shot. Anna must evade discovery, knowing that even her own brother will turn her in if he finds out her secret. Can she save the soldier-and herself?