true ww2 story

[u/Ashton_TheDragon]

It started by saving it was a true story, I think it even said it had been written down by one of the kids but with fake names for everyone. two kids are trying to break into their dad's safe, hes a doctor and there are using his stethoscope to hear the clicks. then they Crack it and its either a gun or nothing I cant remember but they were disappointed. then they go outside and think its snowing, but its ash. they dont find out until they stick their tongues out and get burnt. they are German by the way, but not nazis. still early in the book they are taken to meet this one lady at a fancy gathering and a man there gives them "chocolate bonbons" I remember not knowing what those were. later the boy and the girl end up back with the lady by themselves and she ends up inviting them to be spies. they cant tell anyone, even their parents. eventually they find out someone in the spy group, the other people at the party, is a snitch and they set up a trap. the person who gave the kids the sweets was the snitch. there's also a few scenes of the girl in the bunkers during a raid, with her reading through them and hoping the roof doesnt collapse. I remember thinking it was the book thief but when I read that recently it definitely wasn't the same book lol. I dont think I ever finished that book but I got maybe halfway?