I Survived The Nazi Invasion, 1944 by Lauren Tarshis illustrated by Scott Dawson*

Another incredible historical fiction book written by Ms. Tarshis.  Her books are my favorite for 3rd-5th grade boys.
This book focuses on Jewish partisans and their fight against Hitler and the Nazis.  Max and his sister Zena escape the Jewish ghetto and are rescued by individuals from the resistance fighters.
Ms. Tarshis does not shy away from the violence and the horror of the times.  She does not, however, write in a graphically inappropriate manner.
See the link below to learn more about her books:

http://www.laurentarshis.com/

**Highly recommend.