Despereaux

As the only surviving mouse of the litter, Despereaux was always considered the loser, the runt, so naturally, he falls in love with a princess named Pea. The story also tells of a mouse called Roscuro, who lives in the darkness but wishes for light, and Miggery Sow, a serving girl who wants one wish. They set off on a journey that will end them up in a terrible dungeon, a wonderful castle, and of course, with each other.