"I must have a doctor," the words were reiterated, and the woman put her hands upon the cart, and leant heavily against it. "I can't let--him--die--and yet--no one must know if the doctor comes here," she exclaimed, suddenly pulling herself upright, and speaking fast and earnestly; "not a living soul must ever know; and the doctor himself? If you find a doctor for me, promise to make him swear that he will never divulge where he has been, or what he sees in this house." Christina looked the bewilderment she felt, and a faint wonder flashed across her mind whether this woman could be sane. Her speech savoured of melodrama, her hurried, breathless sentences, the nervous glances she cast over her shoulder, and the strangeness of the words she spoke, all tended to make the girl doubt the speaker's sanity. But the dark eyes, unfathomable and sad as they were, looked straight into hers without a trace of madness; and though she was plainly afraid of something or somebody, it was not the unreasoning fear of insanity. "Is there someone ill in that house?" the girl questioned practically; "is it of great importance to have a doctor?" "It is a matter of life and death," was the broken answer; "when I heard wheels in the lane I came out, hoping it might be someone who would help me. I--cannot leave him myself; I have no one to send--it is all that my servant and I can do to manage----" she pulled herself up abruptly, adding after a moment, "for pity's sake help me if you can." "I will do the best I can," Christina answered, bewildered surprise still her dominant sensation. "I am a stranger in Graystone. We are only staying in a farmhouse there, but by hook or by crook I will get a doctor for you." "I think you will carry through whatever you undertake," the other answered, a smile flitting across the wan misery of her face, as her eyes rested on the girl's square chin, and firmly cut lips; "you look as if you would not easily be beaten." Christina smiled back at her and shook her head. "I was very nearly beaten a little while ago," she said, gathering up the reins and preparing to turn the pony's head up the steep ascent again; "when one is poor, and hungry, all the fight seems to go out of one. But I don't like being beaten, and I shall find a doctor for you." She nodded her head cheerily, and was touching the pony lightly with the whip, when the stranger clutched the side of the cart again, and laid a hand on the girl's shoulder. "Remember, no one must be told that the doctor is coming here; and he himself must be sworn--_sworn_ to secrecy. Promise me you will not tell a soul you have seen me, not a living soul." She was labouring under strong excitement, and it alarmed Christina to notice how the whiteness of her face had extended to her very lips, and what black shadows of suffering and fear lay under her eyes. "Promise," she repeated, her grasp tightening on Christina's shoulder.