: The core group consists of Julian (the leader), Dick (the joker), Anne (the youngest), George (the tomboyish cousin), and Timmy the dog.

: The Lenoir's sinister, supposedly deaf servant who plays a pivotal role in the mystery. III. Themes and Setting

The adventure begins when a massive storm damages the roof of Villa Kirrin, making it uninhabitable. Seeking shelter, Julian, Dick, Anne, George, and Timmy are sent to stay at (Castaway), a mysterious mansion built atop a hill surrounded by marshes and accessible only by a single causeway at high tide.

: A local resident and the primary antagonist involved in smuggling activities.

This paper explores the fourth book in Enid Blyton's The Famous Five series, originally titled (1945) and known in Spanish as " Los Cinco en el cerro del contrabandista " . I. Plot Overview