Music by Rudolf Friml; Lyrics by Clifford Grey and P.G. Wodehouse
Libretto by William Anthony McGuire, based on the novel by Alexandre Dumas
Athos, Porthos and Aramis, that redoubtable trio of King Louis XIII's bodyguard, are enjoying their regular carousal at the
Jolly Miller Inn. They are joined by the penniless but virile Gascon D'Artagnan. His natural resourcefulness is soon called upon, although not before he has fallen in love with Constance Bonacieux. The trouble-making Cardinal Richelieu has heard that the Queen has given England's Duke of Buckingham a token of love, a diamond heart, which was a present from the King to her. Richelieu persuades the King to insist on the Queen's wearing the jewel at a forthcoming gala. Comte de Rochefort and Lady de Winter are sent to London to recover the jewel and return it to Richelieu, who plans to produce it at the gala, thus revealing to King Louis his wife's treachery.
Meanwhile, the Queen has sent Constance, her lady-in-waiting, to entreat the Musketeers to recover the jewel in time for her to wear it and confound her enemies. Upon arriving in London, the Musketeers find that Lady de Winter has already gained possession of the jewel. While pretending to be her lover, D'Artagnan snatches the jewel from her bosom. There is a hectic sword fight over and around Milady's bed. When Comte de Rochefort enters he is slain and the Musketeers hurry back to France. They are just in time to produce the jewel at King Louis' demand so that he may fasten it at the Queen's shoulder as he had done originally.