Even if they had not known this, Susan's demeanor would have told them it was a serious matter. She was evidently wracked by anxiety which transformed her into a being so distant, and at times so cross, that only Daddy John had the temerity to maintain his usual attitude toward her. She would hardly speak to Leff, and to David, the slighting coldness that she had shown in the beginning continued, holding him at arm's length, freezing him into stammering confusion. When he tried to offer her help or cheer her she made him feel like a foolish and tactless intruder, forcing his way into the place that was hers alone. He did not know whether she was prompted by a cruel perversity, or held in an absorption so intense she had no warmth of interest left for anybody. He tried to explain her conduct, but he could only feel its effect, wonder if she had grown to dislike him, review the last week in a search for a cause. In the daytime he hung about the doctor's wagon, miserably anxious for a word from her. He was grateful if she asked him to hunt for medicine in the small, wooden chest, or to spread the blankets to air on the tops of the lupine bushes. And while she thus relegated him to the outer places where strangers hovered, a sweetness, so gentle, so caressing, so all pervading that it made of her a new and lovely creature, marked her manner to the sick man. There had always been love in her bearing to her father, but this new tenderness was as though some hidden well of it, sunk deep in the recesses of her being, had suddenly overflowed. David saw the hardness of the face she turned toward him transmute into a brooding passion of affection as she bent over the doctor's bed. The fingers he did not dare to touch lifted the sick man's hand to her cheek and held it there while she smiled down at him, her eyes softening with a light that stirred the lover's soul. The mystery of this feminine complexity awed him. Would she ever look at him like that? What could he do to make her? He knew of no other way than by serving her, trying unobtrusively to lighten her burden, effacing himself, as that seemed to be what she wanted. And in the night as he lay near the wagon, ready to start at her call, he thought with exalted hope that some day he might win such a look for himself.