I've had multiple children come into the library asking for anything that is like Sophia's War - apparently their teacher had read it to them in class. The book had struck a nerve with a lot of kids, particularly girls. After enough people asked, I knew I had to see what all the fuss was about. 
 As an adult reading Sophia's War, I enjoyed it but wasn't blown away. It's definitely written for 4th-6th I would say. However, I can totally see why young girls (and boys) fell in love with the story, and with Sophia. It's a tale of heartbreak and courage amidst the horrors of British-occupied New York during the American Revolution. What young girls wouldn't love reading a story where the fate of the county rests in the hands of a fifteen year old girl?