Inspired by another thread, this is probably a long shot. I remember a book I used to take out of the library over and over again when I was about 6 or 7 ( now 34), so early 90s. All I can remember about the book is that it was about a boy who used to sit looking out the window at the night sky and I think there were creatures that had tails. At the end of the book, there's a picture where you see that he actually had a tail himself find was one of the creatures. I've searched for this over the years but can't find anything even similar so I am hoping that someone else out there rekelbers