The Three Musketeers by Alexandre Dumas is a swashbuckling historical adventure set in 17th-century France. The novel follows the brave and impulsive young d'Artagnan, who leaves his home in Gascony to join the King's Musketeers in Paris. There, he befriends the legendary trio of Athos, Porthos, and Aramis—three musketeers bound by loyalty, courage, and the famous motto: "All for one, and one for all." Together, they navigate a world of political intrigue, royal secrets, and deadly plots involving Cardinal Richelieu and the mysterious spy Milady de Winter. As battles rage and loyalties are tested, the four companions risk everything in the name of honor and friendship. Dumas' timeless classic combines action, romance, and humor with richly drawn characters and fast-paced storytelling. The Three Musketeers remains one of the most beloved adventure novels of all time.