Part 3/8:
Upon returning to Marseille, Edmund's promotion to captain incites jealousy in Fernand and Philippe Danglars. Fueled by envy, Fernand betrays Edmund, revealing the secret of the letter to Philippe, which ultimately results in Edmund's arrest under false charges of treason. A series of unfortunate events leads Edmund to a nightmarish prison known as Château d'If, where he faces brutal treatment at the hands of the warden.