Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Drums of Autumn

This is the fourth book in the series by Diane Gabaldon. They are very well written books and hard to put down. I would not recommend for the young readers as they can be a little sexually explicit at times. A history lesson and romance novel rolled into one. I loved the book, and I would recommend reading them in order. The fourth book is just as riveting as the first three.