Mystery of the Caribbean Pearls

Biff Brewster receives an urgent telegram from his uncle in Martinique, prompting him to embark on a trip where he befriends a boy named Derek who resembles him. In an attempt at a playful deception, they switch identities, but the plan goes wrong, leading to Biff's kidnapping by thieves targeting a valuable pearl fishery. The story unfolds as an adventure filled with mistaken identities and high-stakes intrigue.