Deep inside the dreaded Bastille, a twenty-three-year-old prisoner called merely "Philippe" has languished for eight long, dark years. He does not know his real name or what crime he is supposed to have committed. But Aramis, one of the original Three Musketeers, has bribed his way into the cell to reveal the shocking secret that has kept Philippe locked away from the world. That carefully concealed truth could topple Louis XIV, king of France, which is exactly what Aramis is plotting to do!

A daring jailbreak, a brilliant masquerade, and a terrifying fight for the throne may make Aramis betray his sacred vow, "All for one, and one for all!" In this concluding episode of the Three Musketeers saga, the actions of Aramis and the other Musketeers - Athos, Porthos, and the most dashing of them all, D'Artagnan - bring either honor or disgrace...and a horrifying punishment for the final loser in the battle royal.