The Kingless Land (Band of Four)

Lady Embra Silvertree is the sorceress daughter of a bellicose baron with an eye towards world domination. She has been imprisoned by her father who hopes to use her as a magical battery to fortify his castle. When a pair of good natured rogues attempt to steal one of her jewel encrusted gowns, they are quickly enlisted as allies to help her escape and, with the aid of a shape-shifting cleric, to seek out the Dwaerindim.