Crushes collide at a magical underwater dance. As best friend and emissary to her kingdom's princess, Periwinkle Wentletrap juggles many responsibilities. At the moment those include getting the princess, and herself, ready for the upcoming Sea Harvest Dance. When a trip to the Thalassinian marketplace for pearls and dress-making supplies leads to a reunion with her long-time crush, Peri is once again caught up in the swirl of emotions she feels for a thoughtful pearl trader who reminds her of a dashing pirate. But things are never simple with Riatus Ballenato. The shadows of his past have come back to haunt him and he will do anything to keep those he cares about from getting caught in the darkness. Even if that means pushing away the girl he's falling for. With the dance fast approaching, it might take a little outside help to bring Peri and her crush together at last.