Watcher by Joan Hiatt Harlow

[Margaret K. McElderry Books] After Wendy is kidnapped by her own mother, the only way she can survive wartime Germany is with the help of a special dog and the family she never knew she had in this historically accurate, standalone companion to Shadows on the Sea. 1942. Berlin, Germany. How did Wendy end up in such a place? Just a few months ago, she was enjoying her time in Maine, supporting the American war effort. But she was kidnapped, then betrayed by her own mother, who is actually a Nazi spy. As a new Berliner—and now a German—Wendy is expected to speak in a language she’s never known and support a cause she doesn’t believe in. There are allies, though, among the Germans. Allies who have been watching over Wendy since she arrived. And Wendy, along with her new German shepherd puppy, must confront them. If only she can find them. Her life depends on it.