Space Pup

From publisher blurb: Your best friend is Homer the dog, the smartest being on Earth. Homer has been taking long trips to the junkyard lately while you're at school, and returning with gifts for you that are weirder and weirder. When Homer brings you a glowing blue Frisbee that translates every language, you know this is no junkyard scrap metal find. Has Homer found a spaceship? Was anyone aboard?