The book narrates the story of Thea, the main protagonist who is a talking mouse. While on vacation with her sisters in Bahamas, she finds an old pirate map. As they stumble upon the pirate map, their quest to find the treasure begins! Will they be able to find the real treasure? Will the map lead them to where they think it is leading them? Or will their quest land them up in a lot of trouble instead? What are the difficulties and hurdles they must cross over before laying their hands upon the treasure that they are looking for? The book contains concise and descriptive answers to all such questions.