Now that the twins have begun to settle into their new lives at Elm Medona, they delve deeper into The Treasure Chest and uncover more about the Pickworth family, including the disappearance of their great-uncle Thorne and the theft of priceless family artifacts. In this adventure, The Treasure Chest transports Felix and Maisie to tropical St. Croix in 1772. There they meet a young man named Alexander Hamilton who is about to embark on a journey...