This is how Mrs. Woolper argued the matter. She came of a prudent race; and anything like prudence seemed to her a commendable virtue. She wished to think well of her master; for her he had been a Providence in the hour of calamity and old age. Where else could she look, if not to him? And to suspect him, or think ill of him, was to reject the one refuge offered to her distress. A magnanimous independence of spirit is not an easy virtue for the old and friendless and poor. The drowning wretch will scarcely question the soundness of the plank that sustains him upon the storm-tossed billows; nor was Mrs. Woolper inclined to question the motives of the man to whom she now owed her daily bread. It is possible that before invoking Mrs. Woolper from the ashes of the past to take her seat by the hearthstone of the present, Mr. Sheldon may have contemplated the question of her return in all its bearings, and may have assured himself that she was his own, by a tie not easily broken--his bond-slave, fettered hand and foot by the bondage of necessity. "What choice can she have, except the choice between my house and the workhouse?" he may naturally have asked himself; "and is it likely she will quarrel with her bread-and-butter in order to fall back upon dry bread?" Mr. Sheldon, contemplating this and all other questions from his one unchanging standpoint, may reasonably have concluded that Mrs. Woolper would do nothing opposed to her own interests; and that so long as it suited her interest to remain at the Lawn, and to serve him, she would there remain, his docile and unquestioning slave. The influence of affection, the force of generous impulse, were qualities that did not come into Mr. Sheldon's calculations upon this subject. His addition and subtraction, division and multiplication, were all based on one system. That happy and unconscious art by which Charlotte Halliday made herself dear to all who knew her had a speedy effect upon the old housekeeper. The girl's amiable consideration for her age and infirmities; the pretty affectionate familiarity with which she treated this countrywoman, who had known her father, and who could talk to her of Yorkshire and Yorkshire people, soon made their way to Nancy Woolper's heart of hearts. For Miss Halliday to come to the housekeeper's room with some message from her mother, and to linger for a few minutes' chat, was a delight to Mrs. Woolper. She would have detained the bright young visitant for hours instead of minutes, if she could have found any excuse for so doing. Nor was there any treason against Mr. Sheldon in her growing attachment to his stepdaughter. Whenever Nancy spoke of that master and benefactor, she spoke with unfeigned gratitude and affection.