Next day there was much open wonder expressed concerning the absence of any of the little bursts of excitement with which Mona Cameron and Minnie Kimberley were wont to refresh the pupils of Miss Marsden's Seminary for young Ladies. Some were even heard expressing disappointment with the novel arrangement, and Mona, who seemed as utterly at a loss to account for it as the rest, became rather piqued at Minnie's serene imperturbability under her most potent thrusts, and was fain to exercise her wit on some more vulnerable object. Minnie kept closely to her work during lesson time, and even during the pauses between classes was observed to sit quite still, attentively contemplating the toe of her boot, and never once running over to whisper to Mabel as she invariably did when she had something on her mind. Then, when lessons were over, and needlework began, she sat in her usual place beside Mabel, but both appeared to be deeply interested in their work, and did not exchange a word, although talking was quite allowable during that time, and the privilege was usually taken advantage of fully by Minnie. This circumstance was construed by some to indicate that a quarrel had taken place between the two friends, and was preying upon Minnie's mind, which hypothesis, however, was quickly annihilated when the two walked off together as usual, apparently on their usual terms, and in their usual spirits. Next day things stood in exactly the same position, and the girls were beginning to get impatient for a solution of the mystery, but no solution was forthcoming. Then came Saturday, on which day school was not held, and the two friends were at liberty to discuss their project in full. They had arranged that the discussion was to take place at Mabel's home, as Minnie's brothers were all at home on Saturday, and would be likely to interfere with their intention of keeping the matter private. Mabel was an only child, her father being a business man with whom the world had not dealt too kindly. Her mother was dead, which circumstance had first drawn Minnie towards her, for she also was motherless.