Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Thriller

Okay, I knew the tortoise would have to die and in the end the demon would have to be caged back up somehow so we could all sleep at night, but knowing what was going to inevitably happen did not keep this scary tale from being a suspensefull, unpredictable page-turner. Diologue between Gavin and Grell was even more entertaining than the first book, which I loved. Highly recommendable.