Mrs. Fairfax stayed behind a moment to fasten the trapdoor; I, by drift of groping, found the outlet from the attic, and proceeded to descend the narrow garret staircase. I lingered in the long passage to which this led, separating the front and back rooms of the third storey: narrow, low, and dim, with only one little window at the far end, and looking, with its two rows of small black doors all shut, like a corridor in some Bluebeard’s castle.

While I paced softly on, the last sound I expected to hear in so still a region, a laugh, struck my ear. It was a curious laugh; distinct, formal, mirthless. I stopped: the sound ceased, only for an instant; it began again, louder: for at first, though distinct, it was very low. It passed off in a clamorous peal that seemed to wake an echo in every lonely chamber; though it originated but in one, and I could have pointed out the door whence the accents issued.