The Princess Diaries, Volume IV: Princess in Waiting

Never before has the world seen such a princess.Nor have her own subjects, for that matter. But Genovian politics are nothing next to Mia's real troubles. Between canceled dated with her long-sought-after royal consort, a second semester of dreaded Algebra, more princess lessons from Grandmére, and the inability to stop gnawing on her fingernails, isn't there anything Mia is good at besides inheriting an unwanted royal title?