Instruct: Classify a given review into positive or negative sentiment.
Query: An intelligently written book which leaves you thinking long after you have finished it.

I love this book. It is the second time of reading it and I am still unable to put it down. The injustice carried out on a wonderful young man is shocking and it gives a sadly accurate insight into a bitter jealous mind. It is a real page-turner and hasn't lost it's appeal over the years since I first read it. Brilliant!