D.J. and his friend Gina are totally normal kids. But that was before a mysterious boy came crashing down from the sky! Hilo doesn't know where he came from, or what he's doing on Earth. (Or why going to school in only your underwear is a bad idea!) But what if Hilo wasn't the only thing to fall to our planet? Can the trio unlock the secrets of his past? Can Hilo survive a day at school? And are D.J. and Gina ready to save the world? Hilo is Calvin and Hobbes meets Big Nate and is just right for fans of Bone and comic books as well as laugh-out-loud school adventures like Jedi Academy and Wimpy Kid!