When Ra-me, the Traveling Troubadour, is invited to attend the christening celebration of Fairhaven Village's newest ship, he doesn't know it will turn into a dangerous adventure. Lured to the village by the promise of a bag of gold and the sighting of a real-live mermaid, he joyfully accepts the invitation to play his piccolo and lute and lead the festival parade.
When Merrylin, the mermaid, fails to break the bottle of sparkling water at the christening, a curse in the form of black clouds threaten, and a storm descends. The black clouds hide the arrival of Mudcat's pirate ship, The Pirate's Revenge. The sea god, Neptune, who brought the curse, must be appeased. When Captain Skip Jack finally broke the bottle, sharing half of its contents with the Neptune, the curse was lifted. But during the darkness, Mudcat the Pirate kidnapped the festival princess, Miss Lulu Belle, and sailed away.
Ra-me is forced to go with the Captain to help find and rescue Lulu Belle. The pirate ship has sailed to the far coastline where many overhangs shelter hidden coves and caves. But the newly-christened ship, Good Ship Lightning Bolt, sails quickly in pursuit.
When Ra-me finds Mudcat the Pirate, he must try to compose a siren's song to make the pirate give up. His lute must play a magic tune. The plot takes a twist, and there is a surprise ending to this adventure.