Miss Poppleton, the Principal of the school, irreverently nicknamed "Poppie" by her pupils, was a double B.A., for she had taken her degree in both classics and mathematics. She was a rather small, determined little lady, with a bright complexion, sharp, short-sighted, greenish-grey eyes, which peered at the world through a pair of round rimless spectacles, but seemed nevertheless to see everything ("too much", the habitual sinners affirmed!), what the girls called "an enquiring nose", grey hair brushed back quite straight from a square, "brainy"-looking forehead, and a mouth that had a habit of pursing and unpursing itself very rapidly when its owner was at all irritated or disturbed in mind. She was a good organizer, a strict disciplinarian, and a clever teacher--everything that is admirable, in fact, in a headmistress, from the scholastic point of view; and her vigorous, intellectual, capable personality always made an excellent impression upon parents and guardians. By the girls themselves she was regarded in a less favourable light: the very qualities which gave her success as a Principal caused her to seem distant and unapproachable. Her pupils held her in wholesome awe, but never expanded in her presence; to them she was the supreme authority, the "she-who-must-be-obeyed", but not a human individual who might be met on any common ground of mutual tastes and sympathies. Miss Poppleton had a younger sister, whose name did not appear on the prospectuses, and who took a very back seat indeed in the school. Among intimate friends Miss Poppleton was apt to allude to her as "poor Edith", and most people concurred in a low estimation of her capacities. Certainly Miss Edith was not talented, neither would she have shone in any walk of life requiring brains. She was the exact opposite of her sister--tall, with big, round, blue, surprised-looking eyes, a weak chin, and a mouth that was generally set in a rather deprecating smile. She held a poor opinion of herself, and was more than willing to fill a secondary place; indeed, she would have been both alarmed and embarrassed if called upon to take the lead. For her elder sister she had an admiration and devotion that amounted to reverence. She cheerfully performed any tasks set her, and was perfectly content to be a kind of general help and underling, without attempting the least interference with any of the arrangements. Critical friends sometimes hinted that Miss Edith's position at Briarcroft was hardly a fair one, and that Miss Poppleton took advantage of her good nature and affection; but Miss Edith herself never for a single instant entertained such a disloyal notion, and continued to sing her sister's praises almost _ad nauseam_. Among the girls she was a distinct favourite; her patience was endless, and her good temper unflagging. What she lacked in brains she made up for in warmth of heart, and though she faithfully upheld