The Man in the Iron Mask is the fourth and final volume.The Vicomte of Bragelonne: Ten Years Later (Le Vicomte de Bragelonne ou Dix ans plus tard) is a novel by Alexandre Dumas, p re. It is the third and last of the d'Artagnan Romances following The Three Musketeers and Twenty Years After. It appeared first in serial form between 1847 and 1850.