"The Sicilian" is a novel written by Mario Puzo, best known for his work on "The Godfather." Published in 1984, the story is set in post-World War II Sicily and follows the life of Salvatore Giuliano, a bandit and folk hero. The narrative intertwines themes of power, betrayal, and the struggle for freedom against oppressive forces. The book also features Michael Corleone, a character from "The Godfather," who returns to Sicily to help Giuliano. As the plot unfolds, it explores the complexities of loyalty and the impact of organized crime on Sicilian society.