How the Moon Fell Below the Mountains

In the ancient kingdom of Tian Xia, princess Silvermoon is getting married - but then a stranger barges in to the ceremony while the young woman is still choosing a groom. First Silvermoon is accused of being a thief, and then she's threatened with terrible danger. Who is the mysterious Tsung Po, and what is the tragic secret he guards beneath the snowbound mountain peaks of the Dragon's Nape? Can the princess escape the hermit's punishment?