Grace was disappointed. She had been on the point of starting out, when the woman's reappearance prevented her. She crouched on the floor beside her door, waiting until the nurse should again be summoned away.

She waited for hours. She heard the church bells in the city, far off and muffled, booming the hour of midnight. The nurse on the chair yawned and nodded. After what seemed an eternity, she heard one o'clock strike, and then two. The house was shrouded in silence. Her knees were cramped and cold, from contact with the floor; her whole body seemed sore, from the nervous tension of her position. She almost screamed, when the electric bell suddenly rang out again, its sound intensified by the stillness until it seemed as though it must wake everyone in the house.

The nurse rose sleepily, glanced at the indicator on the wall which informed her from which room the summons had come, and started down the corridor toward the west wing of the building. As she passed beyond the circle of light cast by the electric globe in the central hall, Grace pushed her door open and slipped noiselessly out. For a moment she hesitated, saw the woman enter a room midway of the corridor, then flew like the wind toward the door which gave entrance to the passageway leading to the laboratory. Her bare feet made no sound, she gained the door without being discovered, and in an instant had swung it open, and was standing in the long covered way outside. She drew the door to after her noiselessly, then sank upon her knees and listened. In a short while she heard the nurse come shuffling down the corridor, and the creaking of her chair as she sank heavily into it. So far, she felt that she was safe.

She advanced along the corridor with great caution. Her chief fear was that the door of the laboratory might be locked, in which case, she would be unable to proceed further. When she reached it, and felt it yield as she slowly turned the knob, she heaved a sigh of relief. In a moment she was in the laboratory.

The room was unlighted, save for a faint glow which came from a small black box in the center of the floor. She had no idea what this box was, but noticed that heavy wires ran to it, from each side, and that there were several protuberances upon its top, which shone like brass. She did not stop to examine it further, however, but looked about for some means of reaching the room below. The idea of recovering the snuff box had suddenly occurred to her. With that in her possession, Richard, she believed, need no longer hesitate to escape at the first opportunity. He had told her that it was hidden in the room beneath. She ran quickly down the steps which she observed in one corner, feeling a glow of excitement at the daring of her quest.

At the bottom of the stairs she found a narrow little corridor with a heavy door opening on it which she judged led into the room she desired to enter. The corridor was lighted by a single window at the end opposite the staircase, through which came a faint light from without.

She groped about in the semi-darkness until she found the knob of the door and slowly turned it, pressing her weight against the panels. It did not yield. With a sickening feeling of disappointment she realized that it was locked.

She stood still for a moment, wondering what she should do next. Suddenly she shuddered, and a horrible faintness came over her. From within the room she distinctly heard the slow moaning of someone evidently in great pain. Thoughts of Richard at once rushed through her mind; she flung herself on her knees, in an agony of fear, and sought frantically for the keyhole. At last she found it, and looked into the room. The sight that met her gaze sent her reeling backward. There lay Richard, her husband, upon the floor, his face encircled by a ring of blinding light, by which she could see, with frightful distinctness, the ghastly expression of his features, the lines of agony about his eyes and mouth.

For a moment she beat frantically upon the door, calling to him incoherently. She thought he did not hear her, for he did not turn his head. Then she stopped, frightened at what she had done. Suppose the doctor were to overhear her? Everything would be lost. There was but one chance for Richard now, she felt, and that lay with her. She would leave the house, in the morning, proceed at once to the Minister's, and tell him the whole story. Snuff box or no snuff box, she was determined to rescue her husband from his present situation, if it was not already too late.

For a long time she looked into the room, watching the face, grim and silent in the circle of light. She called to him over and over, softly, telling him of her plans, of her love for him, of her sorrow, but he seemed not to hear. But for the twitching of his face, and the low moans which he uttered from time to time, she might have supposed him dead.