"I couldn't think of it. Impossible to put Mrs. Roberts to so much inconvenience; I shouldn't consider it for a moment! Let the cursed letter remain where it is!" replied the Colonel, evidently very much upset by this proposition. "As I'd supposed, Colonel Darcy, you would prefer that the document should remain where it is, rather than it should pass, even temporarily, into any other hands than yours. Might I inquire if it's the one you received from Miss Fitzgerald." "It is, of course, quite useless to attempt to deceive a diplomat," replied his companion, with a touch of temper which was not lost on Stanley, who answered composedly: "I think you may be reasonably assured that your letter will never be found till you and it have long been dust, and till not only its importance, but its very meaning, have become unintelligible. You may consider it irrevocably lost, and so, as there's no further excuse for your remaining, Colonel Darcy, I'll wish you--good-night," and the Secretary threw open the great hall door. "Good-night, Mr. Stanley," replied the unwelcome guest, with a frown of anger as he passed over the threshold. "Good-night--but not good-bye--remember we've still a score to settle." CHAPTER XIX A MIDNIGHT MESSAGE Stanley closed the great front door, turned the key, shot the bolts, and lighting his bedroom candle, slowly and thoughtfully betook himself to his chamber. Kingsland's knowledge of the mysterious letter only served to increase the Secretary's suspicions of that young officer's complicity with Darcy, while the letter itself presented such a bewildering variety of contradictory possibilities, that his mind was dazed. A further consideration of his past experiences in this matter did not make him feel any the easier, and for the first time, under the spur of doubt and mistrust, he recalled Kingsland's story of the reception of the missive, and subjected it to a critical analysis. Mr. Riddle had said, and the Lieutenant had confirmed, that the letter had been handed by the former to the latter at the Hyde Park Club, and that the Lieutenant was then "leaving the room." Yet the Secretary, now he came to think of it, was sure Mr. Riddle had not been of the company at or after dinner, and that Kingsland had not left the drawing-room or attempted to do so. Moreover, if Riddle had given him the money for the stamp, why had he not mentioned the fact at the time? The letter was evidently of importance, and intended for Darcy, a man of whose every action, he had the greatest distrust. Yet the important missive, after being lost for three days, was given by its owner to Miss Fitzgerald, who thought so little of it, that she used the envelope to scribble an address on, before giving it to the Colonel, who now had lost it under the secret door.