Four teenagers in the second World War are on a dangerous mission to blow up the heavy water stores at Vemark in Norway and prevent the Nazis from making the atomic bomb.  Book is inspired by real events and contains inserts of original documents including how to survive a German interrogation.

Sounds great but be aware that you may be put off by the totally improbable language the kids use. Whoever heard of anyone, and I mean ANYONE ever saying 'cripes'?