Hitler’s Secret is a nice blend of action, adventure, friendship, and history. The story chapters alternate between characters so the reader is able to see different perspectives adding to the action. Leni and Otto are entertaining as characters. They face constant narrow escapes and they each have their own strengths and weaknesses.
Hitler’s Secret is a great way to spark young readers’ curiosity in history especially WWII. It is a good read for teens as well. There is a good deal of violence in the book but it is dealt with in an age appropriate way. The violence has to be there due to the historical element. Worth a read if you are a fan of action/adventure books.