 The mysterious atmosphere of the opera is enhanced by orchestration of remarkable subtlety and suggestive power.The early years of the twentieth century saw two more French operas which, though not on the level of Debussy's achievement, managed to absorb Wagnerian influences while retaining a sense of individuality.These were Gabriel Fauré's austerely Classical "Pénélope" (1913) and Paul Dukas's colourful Symbolist drama, "Ariane et Barbe-Bleue" (1907).