Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Mind Stretching Book

This book is a fun book to read! It has very detailed illistrations. It is about an 11 year-old elephant who wants to invite his animal friends to his birthday party. He has a grand feast, but no one can eat it until the Eleventh Hour. To take up the time they play games. When it is time to eat the feast, they find that the food has vanished! You have to solve the mystery to find out who stole the feast. It is a fun and challenging book. It keeps your mind working!