<p>THE heiress of McGregor walked slowly up the valley, absorbed in sorrowful thoughts, till a turn of the path brought to her view the baronial mansion of her forefathers. In other words, Marion McGregor, going home from school, came in sight of her father's house. The first expression was the way in which Marion would have liked to describe her progress; the latter was more in accordance with the stern, prosaic facts of the case.<br><br>Strictl...