The Useless Princess

This is the tale of Caitlin, the third Princess of a royal family destined to be absolutely useless, or so she thinks. Upon reaching 'maidenhood' she finds that her destiny is very different and is set on a collision course with the Queen, her mother, who she now discovers is actually a pretty good role for any aspiring 'wicked witches' out in the Queendom.
She needs to find her twin brother and claim the throne foe herself.