And both Theodore and his uncle were students, as Patricia gradually learned. Mr. Colpster was writing a history of his family, and had been engaged for many years in doing so. From Amyas downward the Squire traced the history of his forebears, showing how they had risen to wealth and rank until the middle part of Elizabeth's reign, and how, from that period, by the selfish conduct of Bevis Colpster in parting with the emerald, his sons and grandsons had lost the greater part of their possessions. Also, he related various romantic stories dealing with the attempts of Georgian Colpsters to redeem the family fortunes. And, finally, when he reached the conclusion of the book, as he told Patricia, he intended to relate how the emerald had been recovered, and how again it had worked its spell of good fortune. "But if you don't recover the emerald?" asked Miss Carrol very sensibly. "I must recover it," said the Squire vehemently. "If I do not, the family will die out. When the Mikado Jewel is again in our possession, she can inherit the estates on condition that she marries Theodore or Basil." "Are you speaking of Mara?" questioned Patricia, noting the vague way in which her companion talked. "Of course; of course," he answered testily. "She must marry one of her cousins, and her husband can take the family name. Then the emerald will draw plenty of money to us, and we will again buy back our lost lands." "How can the emerald draw back money?" asked Patricia, again thinking, as she very often did, of her sensations when holding the stone. "I don't know; I can't say. I am only using a figure of speech, as it were, my dear girl. But in some way this emerald means good fortune to us, as was amply proved by the success of Amyas, his son and grandson. They owned all the land as far as Hendle; but when the emerald was lost the acres and their villages were lost also." Mr. Colpster rose and began to walk to and fro excitedly. "I must find that emerald; I must; I must!" "How are you going to set about it?" asked the girl, doubtfully. "I cannot say." He resumed his seat at his desk with a heavy sigh. "There is no clue to follow. If we could learn who murdered Martha we might discover the assassin and regain the jewel." "But how can the assassin have it, Mr. Colpster? Assuming that he murdered poor Mrs. Pentreddle in order to steal the emerald, you know that it was not in her possession." "No. That is quite true. While the assassin was searching the house, the emerald was being stolen from you in the Park. But undoubtedly the emerald was meant to be given to Martha since you went to receive it. How did she manage to get it? I want an answer to that question." "Why not ask it of Harry Pentreddle?" suggested Patricia quietly. Colpster raised his head and stared. "Why? What could Harry possibly know about the matter?"