During this service, an occurrence took place of a singularly providential nature, which showed the sagacity of this poor girl, and her presence of mind in so striking a light, that it is well worthy to be here recorded. The children were all going for a walk, and Master George and Master Frederic were listening at a rat's hole, under the foundation of a building, where the workmen were making some alterations, and had taken away a great deal of the soil, upon one side of the brickwork. As Margaret came up with some half-dozen of the young fry, the boys exultingly called to her to come and hear the old rat gnawing something in the hole. Margaret approached, and with that natural quickness of perception with which she was so gifted, saw danger in the situation of the children. Listening one moment at the hole she was convinced that the creaking sound she heard did not proceed from a rat. In another instant she seized the children by their arms, and exclaimed, with a terror that communicated itself to them all, "Come away! come away! that wall is settling!" Scarcely had she ran with the children half a dozen yards from the spot, when down came the wall in a mass of ruin that must have buried them all beneath it but for the providential sagacity of this young girl. To this day the circumstance is remembered by the parties interested in it, and is looked upon as the interposition of their good angel, in making use of this humble instrument for the preservation of their lives. Margaret, by this time, could both read and write; for the lady, who superintended the whole management of the nursery, had her regular school-hours in the morning devoted to the minutiae of progressive improvement. It was at one of these morning lessons that she discovered Margaret's abilities. Hearing the children their lessons in history, and examining them in the chronology of the kings of England, she was surprised to hear Margaret prompting Miss Sophia, in a whisper, when the child was at a loss for the right date. And when she came to question Margaret, she found that this poor girl had been, though unknown to her, her most attentive scholar. This induced her to take pains with her, and to let her be a participator in all the most useful branches of a nursery education. She was taught to read and write, and understand the Bible history and the Gospel scheme of redemption; in all which studies she became as well informed as any of the children. Soon after this, she rose to be the head nursemaid.