Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The greatest book Koontz has wrote

"Watchers" is a horror story written by DeanR. Koontz....This book in my opinion is the greatest book Koontz had written yet. It has everything a book would want to be. Each character has his or her own plot and when that person meets another important character in the story, their plots combine into like it was one single story. He always goes into detail with each character explaining their background and where they fit in the story. If you're a horror story fanatic, this is just the right book for you.