I remember reading this book when I was younger. It has stayed in my memory because I disliked it so much. IT begins well, as a coming of age story between two friends, a boy and a girl, in their imaginary world. Then, just when the reader thinks what a nice and uplifting book this must be, it seems as though the author doesn't know how to let these two friends grow up together, or grow apart, or whatever they might realistically do, and kills off the girl. I don't think there is any reason for this, and certainly, kids in late elementary/early junior high feel bad enough about life in general, and themselves specifially. They don't need to read depressing nonsense as well. It's just my opinion, but if you don't like sad books, don't waste your time.