Now that Lettie and Clarke have at last tied the knot, their honeymoon trip begins! And everyone else is also there, of course–one does not simply go on a honeymoon without an entire entourage of unrelated persons, after all. The gang arrives at Prince Louis's native Kingdom of Delbaran, home to a magnificent castle, exciting sights, and probably the strangest royal family on the entire continent, bar none. As Lettie and Clarke navigate their life as newlyweds, Brianna and Nadir begin to grow closer, but not all is rosy in this eventful trip...