Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Uneven and, at times, predictable

The first 50 pages of the book had an astounding number of coincides -- enough to make the book completely unbelievable. However, the premise was interesting -- a genius that becomes highly motivated to commit murder, and get away with it. To be fair, the last one-third of the book moved at a good pace and was quite exciting. The two main female characters were very interesting; the mastermide was intriguing; the actual killer was spooky. This could have been a very good thriller, but the first part of the book was not well-crafted.