Ghostopolis by Doug TenNapel
A ghost wrangler sends ghosts who have escaped the world of the undead back. Unfortunately for the main character of this book, Garth, who is not dead, is accidently sent there by mistake. Garth does team up with his grandfather to try to get back home. This book has amazing pictures, dialogue, story, and humor which comes together to make a graphic novel that is just plain awesome. I highly suggest you read this one!!