She looked frightened and unusually pale in her white dress and with the cold gleam of the moon upon her. At first I thought she was walking in her sleep, and perhaps rehearsing again in her dreams the troubles which dogged her waking footsteps. I took her gently by the arm, saying, "Dearest Constance, come back at once to bed; you will take cold."
She was not asleep, however, but made a motion of silence, and said in a terrified whisper, "Hush; do you hear nothing?" There was something so vague and yet so mysterious in the question and in her evident perturbation that I was infected too by her alarm. I felt myself shiver, as I strained my ear to catch if possible the slightest sound. But a complete silence pervaded everything: I could hear nothing.
"Can you hear it?" she said again. All sorts of images of ill presented themselves to my imagination: I thought the baby must be ill with croup, and that she was listening for some stertorous breath of anguish; and then the dread came over me that perhaps her sorrows had been too much for her, and that reason had left her seat. At that thought the marrow froze in my bones.
"Hush," she said again; and just at that moment, as I strained my ears, I thought I caught upon the sleeping air a distant and very faint murmur.
"Oh, what is it, Constance?" I said. "You will drive me mad;" and while I spoke the murmur seemed to resolve itself into the vibration, felt almost rather than heard, of some distant musical instrument. I stepped past her into the passage. All was deadly still, but I could perceive that music was being played somewhere far away; and almost at the same minute my ears recognised faintly but unmistakably the Gagliarda of the "Areopagita."
I have already mentioned that for some reason which I can scarcely explain, this melody was very repugnant to me. It seemed associated in some strange and intimate way with my brother's indisposition and moral decline. Almost at the moment that I had heard it first two years ago, peace seemed to have risen up and left our house, gathering her skirts about her, as we read that the angels left the Temple at the siege of Jerusalem. And now it was even more detestable to my ears, recalling as it did too vividly the cruel events of the preceding evening.
"John must be sitting up playing," I said.
"Yes," she answered; "but why is he in this part of the house, and why does he always play that tune?"
It was if some irresistible attraction drew us towards the music. Constance took my hand in hers and we moved together slowly down the passage. The wind had risen, and though there was a bright moon, her beams were constantly eclipsed by driving clouds. Still there was light enough to guide us, and I extinguished the candle. As we reached the end of the passage the air of the Gagliarda grew more and more distinct.
Our passage opened on to a broad landing with a balustrade, and from one side of it ran out the picture-gallery which you know.