a spring. So far I had interpreted my instructions successfully. A similar search, next the door, and directly under this, was rewarded by a like discovery. The small end of the key fitted this, as it had the upper keyhole; and now, with two or three hard jerks at the key, a door in the panel opened, showing a strip of the bare wall, and a narrow, arched doorway, piercing the thickness of the wall; and within which I saw a screw-staircase of stone.
Candle in hand I stepped in. I do not know whether the quality of air, long undisturbed, is peculiar; to me it has always seemed so, and the damp smell of the old masonry hung in this atmosphere. My candle faintly lighted the bare stone wall that enclosed the stair, the foot of which I could not see. Down I went, and a few turns brought me to the stone floor. Here was another door, of the simple, old, oak kind, deep sunk in the thickness of the wall. The large end
