Having used this book as an example of aliens in children's science fiction, I figured that perhaps I should actually read it, especially as the subject sounded somewhat interesting. There are parts that I really liked, such as the suspense about the Chelans' fascination with the animals, although after a while that seemed pretty obvious as to what the problem was and how they were going to try to solve it. I also really enjoyed the idea of possession and ownership, where the Chelans have a more fluid interchange of items. However, this was not really developed into a meaningful contribution to the end. Rather, the ending was quite disappointing with everything wrapped up in a nice neat bow, in a way that seemed way too easy. The shifting perspectives from human to alien were interesting. I think what I liked most was the environmental theme that underlies the book.