Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Can't put it down...

The Left Behind books are absolutely amazing. Apollyon is the best one yet! I was done with it in two days (it took so long because I had school and homework!) Apollyon has got plenty of action and can really keep you guessing. Sad times, happy times, scary times, peaceful times...I don't know how they do it! EVERYONE READ THIS BOOK! It's going to be a very long wait for Assassins. (book 6) Apollyon is the best so far of the single best Christian fiction series out there!