Review of AR book

I really liked this recent book that I have read. I first started reading this book because I found the book cover very interesting to read. Because I saw the David's star, I knew it was something about the Jewish people. The book cover made me very curious, and I started reading.

It is about the times during the Nazi's ruling. The main character has a friend that is Jewish, and they decided to hide her in their house so that her friend can survive. There are times that the police comes to their house and asks who the friend is, however, the family hides her perfectly by saying that she is her family. They actually had a older daughter who died long ago, and she had dark colored hair, which resembles the friend. Also later on, they move to another hide out, and there, they meet the resisting group who are non-Jewish, and they are trying to save the Jewish people from the Nazi group.