Yet, on the whole, so Ancrum thought, the brother showed a wonderful patience. He was evidently haunted by a sense of responsibility towards his sister, and, at the same time, both tormented and humiliated by his incompetence to manage or influence her. It was curious, too, to watch how by antagonism and by the constant friction of their life together, certain qualities in her developed certain others in him. Her callousness, for instance, did but nurture a sensitive humanity in him. She treated the lodgers in the first pair back with persistent indifference and even brutality, seeing that Mrs. Mason was a young, helpless creature approaching every day nearer to a confinement she regarded with terror, and that a little common kindness from the only other woman in the house could have softened her lot considerably. But David's books were stacked about in awkward and inconvenient places waiting for the Masons' departure, and Louie had no patience with them--with the wife at any rate. It once or twice occurred to David that if the husband, a good-looking fellow and a very hard-worked shopman, had had more hours at home, Louie would have tried her blandishments upon him. He on his side was goaded by Louie's behaviour into an unusual complaisance and liberality towards his tenants. Louie once contemptuously told him he would make a capital 'general help.' He was Mrs. Mason's coal-carrier and errand-boy already. In the same way Louie beat and ill-treated a half-starved collie--one of the short-haired black sort familiar to the shepherd of the north, and to David himself in his farm days--which would haunt the shop and kitchen. Whereupon David felt all his heart melt towards the squalid, unhandsome creature. He fed and cherished it; it slept on his bed by night and followed him by day, he all the while protecting it from Louie with a strong hand. And the more evil was the eye she cast upon the dog, who, according to her, possessed all the canine vices, the more David loved it, and the more Tim was fattened and caressed. In another direction, too, the same antagonism appeared. The sister's license of speech and behaviour towards the men who became her acquaintances provoked in the brother what often seemed to Ancrum--who, of course, remembered Reuben, and had heard many tales of old James Grieve, the lad's grandfather--a sort of Puritan reaction, the reaction of his race and stock against 'lewdness.' Louie's complete independence, however, and the distance she preserved between his amusements and hers, left David no other weapon than sarcasm, which he employed freely. His fine sensitive mouth took during these weeks a curve half mocking, half bitter, which changed the whole expression of the face.