Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Review for Leven Thumps and the Gateway to Foo

This book is a non-stop adventure. The perfect book for kids who like fast-paced books. It is also a great book for picky readers(like my sister). Join Leven as he gains confidence and finds out his destiny!(too bad it took saving the world for Leven to know he is better than he thinks.) Oh, and he also meets some pretty cool friends.