I strolled over to the window-seat, and sat gazing round at the dark oak panelling, wondering vaguely why the place was never used. If occupied in no other way, it surprised me that Miles did not appropriate it for a sort of private den or workshop. I was lolling back, idly poking a straw into a crevice of the woodwork, when suddenly the same strange sound broke on my ear which I had heard before. I sat up to listen. It was like some one humming without any regard to tune. At one time it seemed to come from a distant part of the house, and then it appeared to be actually in the room.

One glance was sufficient to show that the chamber itself was empty. I listened with awakened curiosity, but with no sensation of uneasiness or fear. What could it be?

Rising to my feet I walked across the room, stepped into the open fireplace, and stared up the wide chimney. Some spots of rain fell on my upturned face, but nothing was to be seen except the gray sky overhead. I stepped back into the room, and still the muffled drone continued, rising and falling, and then ceasing altogether.

"It must be the wind in the chimney," I thought, and moved once more into the open hearth; but now the sound seemed in the room, and was certainly not in the stone shaft above my head. I next opened the window and looked out into the walled garden. No noise, however, was to be heard there but the patter of the raindrops on the leaves of the trees. Perplexed and rather astonished, I now crossed the floor, opened the door, and went out into the passage, only to find it empty. Once more, as I stood undecided what to do next, the crooning notes fell on my ear, and I began to think that some one was playing me a trick. It was just as I had arrived at this conclusion that I heard Miles calling me; and a moment later, in obedience to my answering hail, he joined me in the empty room.

"I keep hearing that funny noise," I said, "and I can't make out where it comes from."

He made no reply, but stood at my side listening till the sound came again, this time a long, mournful wail like that of some one in pain. I turned, and was surprised to find that Miles's face was almost bloodless. He slipped his arm within mine, and drew me towards the door.

"What can it be?" I asked.

"No one will ever know for certain," he answered, speaking almost in a whisper. "The room is haunted!"

"Haunted!" I cried, stopping short as I gained the passage. "You don't believe in ghosts?"

"I believe in that one," he answered. "I've heard it too often to have any doubt. That's the reason we never use the room; only mother doesn't like it talked about, because it only frightens the servants. People have tried to make out it was the wind; but though we've blocked up the chimney, and have stopped every crack and hole we could find, it makes no difference to the sound, and no one can tell from what part of the room it comes. Besides, the story is that my great-grandfather died there. When he was an old man he always went about humming to himself, and making just the same sort of noise that has been heard in the room ever since his death. All the people round know about it, and they call it the Singing Ghost of Coverthorne."