The will was a very simple matter. The Colonel had dissipated the greater part of his fortune in his chemical investigations. His will began and ended in three clauses, which he dictated from his bed, in perfect possession of his faculties. The first clause provided for the safe keeping and support of his animals. The second founded a professorship of experimental chemistry at a northern university. The third bequeathed the Moonstone as a birthday present to his niece, on condition that my father would act as executor. My father at first refused to act. On second thoughts, however, he gave way, partly because he was assured that the executorship would involve him in no trouble; partly because the lawyer suggested, in Rachel's interest, that the Diamond might be worth something, after all."
"Did the Colonel give any reason, sir," I inquired, "why he left the Diamond to Miss Rachel?"
"He not only gave the reason—he had the reason written in his will," said Mr. Franklin. "I have got an extract, which you shall see presently. Don't be slovenly-minded, Betteredge! One thing at a time. You have heard about the Colonel's Will; now you must hear what happened after the Colonel's death. It was formally necessary to have the Diamond valued, before the Will could be proved. All the jewelers consulted, at once confirmed the Colonel's assertion that he possessed one of the largest diamonds in the world. The question of accurately valuing it presented some serious difficulties. Its size made it a phenomenon in the diamond market; its color placed it in a category by itself; and, to add to these elements of uncertainty, there was a defect, in the shape of a flaw, in the very heart of the stone. Even with this last serious drawback, however, the lowest of the various estimates given was twenty thousand pounds. Conceive my father's astonishment! He had been within a hair's-breadth of refusing to act as executor, and of allowing this magnificent jewel to be lost to the family. The interest he took in the matter now, induced him to open the sealed instructions which had been deposited with the Diamond. The lawyer showed this document to me, with the other papers; and it suggests (to my mind) a clue to the nature of the conspiracy which threatened the Colonel's life."
"Then you do believe, sir," I said, "that there was a conspiracy?"
"Not possessing my father's excellent common sense," answered Mr. Franklin, "I believe the Colonel's life was threatened, exactly as the Colonel said. The sealed instructions, as I think, explain how it was that he died, after all, quietly