Mrs. Conway thought a good deal during the day about the events of the night before, and determined to be more cautious than ever in her operations; for she thought it probable that Miss Penfold would be even more wakeful and suspicious than before. She would have left the search alone for a few days had it not been for the idea that had taken her from her bed the night before. It had struck her then as possible that the spring opening the secret closet might be in the chimney behind it, and that it was necessary to touch this from the outside before opening the door of the secret room.
She was convinced that had there been a spring in the room itself she must have discovered it, but it never before struck her that it might be at the back of the closet. She felt that she must satisfy herself on this point whatever the risk of discovery. Accordingly at the usual hour she made her way downstairs. She had put the key in the door, and was in the act of turning it when she heard a noise upstairs. She opened the door and stood looking up the stairs. In a moment she saw a light, and directly afterward Miss Penfold appeared at the top holding a candle in her hand. Knowing she was as yet unseen, Mrs. Conway entered the library and closed the door behind her. Then she hurried to the fireplace, touched the two springs, pulled the bookcase open and entered the secret chamber, and closed the bookcase behind her.
She had often examined the lock, thinking that the secret spring of the closet might be concealed here. It was a large old-fashioned one, and moved two bolts, one at the top of the door and one at the bottom. These she had already discovered could be easily opened from the inside. She imagined that Miss Penfold was merely going round the house to see that all was secure, and she had, contrary to her practice, taken the key from the door of the library in order that Miss Penfold might enter it if she chose. But the thought now flashed across her that possibly she might intend to open the secret room; and to prevent this she now thrust the barrel of the pistol she carried in between the back of the bolt and the piece of iron against which it shot, so that the action of the springs could not throw it out of its place.
Breathlessly she listened. Presently she heard a sharp click in the wall behind her. She had scarcely time to wonder what this meant when she heard a sound in the lock close to her. It was repeated again and again. Then she felt a slight tremor of the door as if somebody was trying to shake it. Her heart almost stood still. Miss Penfold was evidently trying to open the chamber; and, though she knew the lock could not open so long as she held the pistol in the place, she felt her breath coming fast and her heart beating. For five minutes the attempts to open the door continued. Then all was still again.
For half an hour she remained without moving; then, as all continued quiet, she guessed that Miss Penfold, finding the springs did not act, had returned to her room. She now rose to her feet, drew out her dark lantern, and turned to the wall by her side. She gave an exclamation of joy—the stone that she had so long vainly endeavored to move was swung open. Miss Penfold who of course had the secret, had touched the spring outside before attempting to open the chamber, and the stone, which was set in iron, had swung open on a hinge. In a moment Mrs. Conway explored the contents. The closet was about two feet square by nine inches in depth, and contained two shelves. There were several papers in it, and the very first upon which she placed her hand was marked "The Last Will and Testament of Herbert Penfold."
So overwhelmed was Mrs. Conway at this termination to her long search that she sank on the ground, and it was some time before she could collect herself sufficiently to consider what was her best course. It was evident that for some reason Miss Penfold had been about to visit the secret room to see that the will was still in safety. The failure of the springs to act had, of course, disconcerted her; but she might try again in the morning, and would then be able to enter the room, and would discover that the will was missing.
It was clearly the best course to make off at once. She remembered now that she had noticed a tiny hole no bigger than a nail-hole in the door, and had found that upon the other side it was just above a row of books in the shelves somewhat lower in height than the rest, and was evidently intended to enable the occupant of the chamber to obtain a view of the library, and see whether that room was occupied. She applied her eye to it at once, and saw that all was dark. Concealing the lantern again beneath her coat, she drew back the bolts gently and stepped out. Then she went to one of the windows, took down the bell, carefully unbarred the shutters, threw up the window and stepped out.
She sped cross the garden, down the drive, and through the gate, and then hurried at the top of her speed toward the village. She had gone about half the distance when she heard a horse's footsteps approaching. The road ran between two high hedges and there was no place for concealment. She therefore walked along by the edge of the road close to the hedge, hoping that the horseman would pass without noticing her. His eyes, however, were too much accustomed to the darkness. He reined in his horse when he came to her, and a moment later the light of a small lantern fell on her face.
"Who are you?" a voice asked, "and where are you going?"
"I am going to the vicarage," she said, "to see Mr. Withers."