A secret prisoner. A hidden twin. A kingdom's fate in the balance.

The Man in the Iron Mask (1847–1850), by Alexandre Dumas, is the dramatic conclusion to his epic d'Artagnan Romances, following The Three Musketeers, Twenty Years After, and The Vicomte of Bragelonne.

The story unfolds as the Musketeers—d'Artagnan, Athos, Porthos, and Aramis—face their most perilous mission yet: uncovering the mystery of the masked prisoner whose identity could shake the throne of France. In a world of shifting loyalties, royal intrigue, and personal sacrifice, the bonds of friendship are tested to their limits.

Blending historical drama, political conspiracy, and timeless adventure, Dumas delivers a moving and unforgettable finale to one of literature's greatest sagas.

With passion, courage, and tragedy, The Man in the Iron Mask remains one of the most powerful and enduring works of French literature.

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