Alexandre Dumas published The Three Musketeers in 1844 and the sequel Twenty Years After in 1845. But what happened to the protagonist of both novels, the famous hero d'Artagnan, in the meantime? The Cardinal's Red Lily tells an alternate story about what might have been... Paris 1640 - One for all and all for one! For a long time, the brave Musketeers' reputation preceded them, but when Captain de Tréville falls from grace, the regiment is disbanded. The former Lieutenant d'Artagnan is determined to save the corps - even if that means joining the Red Guard of the scheming Cardinal Richelieu. Scorned as a traitor, d'Artagnan must confront a web of intrigues, dangerous love affairs and vengeful enemies in order to achieve his mission.