"While the Thea Sisters are on a tropical vacation in the Bahamas, they stumble upon an old pirate map. It's related to a local legend. Could it lead to treasure? The five mice venture onto the sparkling Caribbean Sea to follow the map--but someone else is trying to find the treasure first"--Page 4 of cover.

Translation of: Avventura ai Caraibi. "Based on an original idea by Elisabetta Dami"--T.p. verso. Thea Stilton is a book character who's the attributed author. She's the younger sister of Geronimo Stilton, the fictional author of a related series.