All for one and one for all That's the rallying cry of the Musketeers--guards of the French King--and the call to adventure for young readers enjoying their first taste of Dumas' classic swashbuckler. Aramis, Athos, Porthos, and the not-quite-yet Musketeer D'Artagnan use their wits and their swords to battle an evil Cardinal, the traitorous Milady, and other enemies of the French court.