She had told him in a few words how she had found the house when she arrived, and the little she had done. He looked her through with his kind tired eyes, noted the sweet, sad face, the dark circles under her eyes, the pallor of the thin cheeks, and shook his head doubtfully.

"You're young for this sort of thing," he said gruffly. "It's a hard case, and her only hope is good nursing. I'm afraid you're not equal to it. You'll break down yourself."

"Oh, no, I'm quite strong," said Dawn, bravely trying to smile.

"Well, I don't know how it can be helped," he mused. "I don't know of a single person I can get to help you. It may be Patience Howe could come if she can get away from the Pettibones. I'll see what I can do. I'll stop and send a line to Mrs. Van Rensselaer's sister. She'll likely come down by to-morrow. You know she was here when your father died. Do you think you could get along to-night alone in case I can't get any one? I'll try to get back here before dark if I can and bring some one to stay with you. I haven't had a wink of sleep for forty-eight hours except what I caught on the road. I'll get back as soon as I can."

Dawn assured him she would do her best, though her heart quaked within her at thought of staying alone with the death-like sleeper upon the bed. The doctor gave a few directions and cautions, and hurried away.

The house settled into quiet, and the hours stretched into torturing length. Dawn slipped downstairs to find some food, for she was growing faint with long fasting. But there was nothing in the house fit to eat. The bread was moist and sticky with the damp, warm atmosphere, and she had no heart to cook anything. She had arranged the fire to keep the kettle boiling, for hot water was an essential in the sick-room. Now she caught sight of a basket of eggs and dropped several into the boiling water. These would keep her alive and be easy to eat.

The afternoon was a long agony. She spent most of the time applying hot cloths, and chafing the skin of her step-mother. From time to time the woman would almost waken or moan and toss in her sleep. As the hot, red sun slipped down in the west and the oppressive darkness settled upon the house, Dawn felt more alone than she had ever been in all of her short, troublous life. She lighted a candle and set it on the floor in the hall, as in the room it seemed to trouble the patient. The long, flickering shadows wavered over the floor in ghostly march, and the nurse sat and watched them till it seemed that they were the shadows of all the troubles that had taken their way through her young life.

It was late in the evening when the doctor finally returned, and he was alone. But Dawn was glad to see his kindly face, for she had almost given up hoping for him that night, and it seemed terrible to her to sit there and feel that the death angel was standing at the other side of the bed, perhaps.

But the doctor's eyes brightened a little as he looked at the patient.

"She's holding her own," he murmured. "You've done pretty well, little girl. Just as well as an experienced nurse. If you can keep it up during the night you may save her life. I'm sorry I couldn't get any one to stay with you to-night, but there wasn't a soul who was not already taking care of two or more cases. I'd stay myself, but there are three cases I must save to-night if possible. Keep up the treatment as before, and if she rouses again try this new medicine."