Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed

I have read all of James Patterson's books, and was anxiously awaiting his latest. I was very disappointed in the vampire story and found a lot of the sexual scenes unnecessary for such a talented writer. In the previous book, I already knew the identity of the Mastermind, so it was no big surprise in the this book when it was revealed. I hope he continues on with the Alex Cross stories, but I also hope he returns to his writing of old and not the style in this book.