This book came out after the movie did, and I remember speed-reading it at my best friends' house before my sister and I worked with them on The Testing of a Thousand Batteries for part of our church's 2007 summer musical. That was a really fun day, but since I didn't really care for this book at the time, the association makes this only mildly nostalgic.
Last fall, I found got a like-new copy of this at the dollar bookstore, and I got it for free, since I was using trade-in credits. I wouldn't have pursued my own copy of the book under other conditions, but I'm glad to have this nonessential extra with my complete set.
I still don't really like it. It's nice to have Emily's perspective, and the book incorporates lots of British cultural and historical details from the era, but Emily makes some foolish and out-of-character choices. Even though she receives consequences for them, I would have preferred a different plot entirely. The story is a 2.5 star one for me, but since I deeply relate to Molly's struggles with math and music, and appreciate the ways that "the peek into the past" section in the back addresses the experiences of European child refugees and Japanese American children in internment camps, I'm rounding up to three.