The opera "Ariane et Barbe-Bleue" ("Ariadne and Bluebeard"), which he wrote between 1899 and 1907, has often been compared to Debussy's "Pelléas et Mélisande". This is because it is similar in its musical style, and both operas are based on words by Maurice Maeterlinck. Dukas's last big work was the grand oriental ballet "La Péri" (1912). This is about a man who goes to the Ends of the Earth to find immortality, and finds a mythical Peri, holding The Flower of Immortality.