Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredible Book

At first, I thought the dialogue was confusing to the point that I wasn't even sure who the narrator was. Then, as I read further, I became enthralled. I had it all figured out. But, with the epilogue, I found that I hadn't figured anything out, although the clues were certainly there. A masterful work by an 18 year old writer.