midnight
Men do n't know any other song . Do n't imitate them , Captain . '' She remained pensive a long time . Twilight was rapidly falling ; half the sky was of amber and the other half of a midnight blue in which the first stars were beginning to twinkle . The gulf was drowsing under the leaden coverlet of its water , exhaling a mysterious freshness that was spreading to the mountains and trees . All the landscape appeared to be acquiring the fragility of crystal . The silent air was trembling with exaggerated resonance , repeating the fall of an oar in the boats that , small as flies , were slipping along under the sky arching above the gulf , and prolonging the feminine and invisible voices passing through the groves on the heights .