idea of rubbing shoulders with something unseen gave me a shock in spite of myself. {22} “Ah,” said Charlotte, “it gives you an—unpleasant feeling. I forgot you are not used to it like me.” “I am tolerably well used to it, for I have heard it often,” I said. It was cowardly to get to the other side, but I fear I did so with an involuntary movement. Then I laughed, which I felt to be altogether out of place and fictitious, and said, “No doubt there is some very easy explanation of it—some vibration or{23} echo. The science of acoustics clears up many mysteries.” {23} “There is no explanation,” Chatty said almost angrily. “She has walked here far longer than anyone can remember. It is an ill sign for us Campbells when she goes away. She was the eldest daughter, like me; and I think she has got to be our guardian angel. There is no harm going to happen as long as she is here. Listen to her!” she cried, standing still with her hand raised. The low sun shone full on her, catching her brown hair, the lucid clearness of her brown eyes, her cheeks so clear and soft, in colour a little summer-brown too. I stood and listened with a something of excited feeling which I could not control. If I had followed my first impulse I am not sure that I should not have bolted through the shrubbery; but of course I did not. And the sound of this third person, whose steps were not to be mistaken though she was unseen, made{24} my heart beat. It was no doubt the utmost folly; for there must be an explanation for it in nature: of that I could not doubt for a moment. {24} “You are startled,” she said, with a smile. “Well, I should not be acting my part, should I, as I ought, if I did not feel the proper thrill. It must be disrespectful to a ghost not to be afraid.” “Don’t say a ghost,” said Chatty; “I think that is disrespectful. It is the Lady of Ellermore; everybody knows about her. And do you know,” she added, “when my mother died—the greatest grief I have ever known—the steps ceased? Oh, it is true! You need not look me in the face as if there was anything to laugh at. It is ten years ago, and I was only a silly sort of girl, not much good to anyone. They sent me out to get the air when she was lying in a doze; and I came here. I was crying, as you may suppose, and at{25} first I did not pay any attention. Then it struck me all at once—the Lady was