Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What A Great Read!

Without a doubt, simply the best book I have ever read. Adventure, mystery, suspense, horror... this book weaves it all into a masterpiece. The historical characters add so much to this richly cast story. Sherlock Holmes fans are rewarded with a special insight never before considered. The streets of Great Britian from the late 1800's are very much alive! Don't miss the journey.