Instruct: Classify a given review into positive or negative sentiment.
Query: Gripping....

I'm not very big on YA literature, but read this on a recommendation. As it turns out, I couldn't put the book down and was found guilty of reading it way too late into the night on several weeknights. Loved the ending of the book, but the last chapter had something lacking. I can't put my finger on it. Don't let that keep you from reading this book, especially if you don't normally read YA.