Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It's a page turner!

Couldn't put this book down. Although you have a pretty good guess who killed Katie Marcus half way through the book, Lehane keeps the story twisting and turning and you are never really sure who the killer is until the end. Lehane is great at building his characters, especially Jimmy (father of Katie) and Sean (police investigator)who were childhood friends, and describing how lifes threads intertwine. This is the second book I've read of Lehane (Shutter Island was the other). He's become my new favorite author.