Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Great Science Fiction Book for Kids

If you enjoy science fiction books, then you should read When The Tripods Came. This must read book is a story about a boy named Laurie living in a world that was recently taken over by giant tripods. These mechanical monsters are quickly destroyed but not before they manage to hypnotize most of the planet's population. The world is taken over; Laurie, his family, and his friend, Andy flee from England where they were living. They go to live with Laurie's stepmom who left to stay with Laurie's grandma and ill grandpa. The small town where they had sought refuge is quickly taken over and they are forced to seek refuge in the mountains. Can they survive in a world conquered by tripods? To find out read the series.If you like science fiction, adventure, and friendship, you have to read this book. This book is only one in a series of four. I enjoyed this book and I think you will too.