I would recommend this book, although not for rising 8th graders because it is slightly for younger kids, and I am rereading it, but it is still a great and interesting book. Sam Gribley leaves New York City to his great-grandfather's farm, where he lives all by himself for about a year. If you are into nature, and living off of nature, this book is for you. There are other books in the series, if you enjoy this one.
Esme, 8, Vassal Lane Upper School