Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Intriguing; but ultimately disappointing

This book caught my attention quickly, and kept me puzzled and, at times, almost, spellbound. There were layers upon layers of coincidence and happenstance, and I felt that ultimately, surely, this would all come together through skillful writerly sleight-of-hand. Such was not, however, the outcome. Countless hints and feints just fade away, never explained, never resolved. The "resolution" was too quick and incomplete; almost a quickie deus-ex-machina formulation, leaving far too many issues hanging, unexplained, irritating, bothering, and making me wonder whether I hadn't wasted my time on this book.