Shortlisted for the 2018 Costa Children's Book Award.

Nominated for the CILIP Carnegie Medal 2019

Shortlisted for the Branford Boase Award 2019

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.