Finally finished this with my son, and I really enjoyed it. It‘s not suuuuuuper realistic, but I get it‘s for kids (my son is 11). Michael‘s dad is the Irish ambassador in Berlin during WWII, and they, along with Michael‘s mom, are spies for Britain. It has enough to teach about WWII, with hints of the Holocaust, while not being horrific. It‘s a great book for kids interested in history and the world wars.