Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Book for Pre-teen to Adult

I read this book when I was a teenager and again in my 30's. I want to own it. And maybe it isn't the great "Sci-fi" book of the century but it definitely has a great story--certainly one I have never forgotten. I love this book because it the story of a boy who finds a puppy. As the puppy grows the boy starts to notice something amazing about the dog. Dog is telepathically linked to the boy --how cool is that! Then it turns out that the dog is an alien (actually 1/2 alien and 1/2 earth dog) who the government is hunting. I always thought this would make a great movie. Anyone who loves dogs and campy sci-fi novels will love to read this.