Dancing Moons

It was the night of the dancing moons and Princess Soli and her twin sister Princess Elan are to be crowned queens. But the twin fifteen year old sisters may find this night doesn't go as they would have liked it to? Can an enemy attack force the tides to change? If they escape in the nick-of-time can they still make it to their coronation? Or will the already crumbling realm be brought to its knees?