The Man in the Iron Mask [Third Book of the D'Artagnan Romances: Chapters 208-267 and Epilogue (1661-1673)]

You are about to hear," said Aramis, "an account which few could now give; for it refers to a secret which they buried with their dead...." So begins the magnificent concluding story of the swashbuckling Musketeers--Aramis, Athos, Porthos, and D'Artagnan. Aramis—plotting against the King of France—bribes his way into the jail cells of the Bastille where a certain prisoner has been entombed for eight long years. The prisoner knows neither his real name nor the crime he has committed. But Aramis knows the secret of the prisoner's identity...a secret so dangerous that its revelation could topple the King from his throne! Aramis...plotting against the King? The motto of the Musketeers has been "All for one, and one for all." Has Aramis betrayed his friends? Is this the end of the Musketeers?