The inside flap says it's based on the motion picture rather than on Kate DiCamillo's Newbery Award winning book. The tiny mouse Despereaux is born into the world and into the castle with a good heart and a quest for adventure. His curiosity will lead him to the world of Princess Pea whose mother, the Queen, has died leaving a grieving family. Miggory Sow longs to be a princess. Roscuro the rat has been banished to the dungeon. These are the ingredients of our tale told as a graphic novel.
Tale of Despereaux: The Graphic Novel