Boy Behind the WallPaperback / softback
In 1960s Berlin the Wall is everywhere. It cuts through streets, parks, even houses. Teenagers Harry and Jakob live either side of the divide.
In West Berlin, American Harry witnesses the brutal shooting of a boy trying to escape over the Wall into the West, and decides to emulate his comic book heroes and help those in the East however he can.
On the other side in East Berlin, Jakob is the adopted son of a high up Stasi officer, feeling suffocated by the rules of a strictly regimented society and desperate to find his real family.
When Jakob finds a message that Harry has sent over the Wall, he grasps the opportunity. The boys begin a secret friendship, evading the authorities using lemon juice as invisible ink to share hidden messages.