A teenage spy. A Nazi boarding school. The performance of a lifetime. Sarah has played many roles - but now she faces her most challenging of all. Because there's only one way for a Jewish orphan spy to survive at a school for the Nazi elite. And that's to become a monster like them. Survive. Deceive. Resist. They think she is just a little girl. But she is the weapon they never saw coming... with a mission to destroy them all.