For by dint of thought a scheme had been perfected, and on a Sunday morning, when as usual Rachel had disappeared, no man has ever known whither; when, according to its custom, the strange visitant had also, to all appearance, withdrawn,--on a Sunday morning I hastened to put my plan in action. On the main floor in the rear of the house was a chamber, into which the sounds had sometimes intruded, which was small, bare, and lighted by one deep window looking directly out on the orchard. This window I had grated strongly with heavy wire on the outside, where the orchard hill rose steeply from the house; and over against the window, in the wall between chamber and dining-room, was a high closet, in which I had stored a strong net, such as fishermen use for their seines. Fastening stout wires to the ceiling from one end of the room to the other, to be used for slides, and rigging several small blocks above the window and near the floor, I stretched the necessary ropes from closet to blocks and back again, laid everything ready for instant use, cleared the room of furniture, and awaited events. There was no fear of interruption from Rachel, for during the years we had lived together I had never seen her on a Sabbath. Every Monday she was at her post, although laboring under some excitement, which showed itself in mutterings and a certain wild gesture that I had learned to attach no importance to. There was no fear that I should not have the invisible to myself. Evening came to close a sultry day with growls of distant thunder and sudden flares of light behind Navesink Hills; the bushes drooped languidly; only the tree-toads were clamorous, and their jubilee was a mournful one on every side. I was sitting by the west window with my head on my breast, and, now that the crisis had come, almost apathetic to the presence itself, when its approach took place. It seemed to stop near my chair, as if it regarded me closely. I had been before in singular predicaments, but it seemed to me this was the most trying. I felt that I must look very pale, but with an affectation of indifference I arose, walked across the room and entered the bed-chamber. In a moment I understood that the unseen had likewise passed the sill and had entered the room; then I slammed the door, locked it, and put the key in my pocket. Everything had been made ready to cope with a material and not a supernatural being; still it was purely a venture, and at no previous time had there seemed so little hope of success. Nevertheless not a moment was lost in hauling out the net and placing it in position across the room so that it hung straight, filling the space between wall and wall, and ceiling and floor. Then I began to draw it down the room by means of the ropes, and on the axis of the chamber, so that its edges passed smoothly along ceiling, walls, and floor. The anxious moment was at hand.