Instruct: Classify a given Amazon review as either positive or negative.
Query: Great debut novel

I think this is a GREAT first novel. I recognized some flaws but the story is excellent and kept me reading despite the typos (which are NOT the author's fault) and some technical errors concerning computers. I had a good several hours' worth of reading and I am looking forward to Mr. O'Callaghan's next novel featuring Lt. Driscoll. I thoroughly enjoyed this book and recommend it to anyone who likes crime novels, especially about serial killers and how they are caught. This was one sick [...] and I think the author showed how he became the monster he was very adeptly (without making the reader pity him - after all, not every kid from an abusive family becomes a serial killer). I really liked the book!