“And so I am,” said Hughes. “Captain Fraser-Freer got in rather a mess in India and failed of promotion. It was suspected that he was discontented, soured on the Service; and the Countess Sophie de Graf was set to beguile him with her charms, to kill his loyalty and win him over to her crowd. “It was thought she had succeeded--the Wilhelmstrasse thought so--we at the War Office thought so, as long as he stayed in India. “But when the captain and the woman came on to London we discovered that we had done him a great injustice. He let us know, when the first chance offered, that he was trying to redeem himself, to round up a dangerous band of spies by pretending to be one of them. He said that it was his mission in London to meet Von der Herts, the greatest of them all; and that, once he had located this man, we would hear from him again. In the weeks that followed I continued to keep a watch on the countess; and I kept track of the captain, too, in a general way, for I’m ashamed to say I was not quite sure of him.” The colonel got up and walked to the window; then turned and continued: “Captain Fraser-Freer and Von der Herts were completely unknown to each other. The mails were barred as a means of communication; but Fraser-Freer knew that in some way word from the master would reach him, and he had had a tip to watch the personal column of the Daily Mail. Now we have the explanation of those four odd messages. From that column the man from Rangoon learned that he was to wear a white aster in his button-hole, a scarab pin in his tie, a Homburg hat on his head, and meet Von der Herts at Ye Old Gambrinus Restaurant in Regent Street, last Thursday night at ten o’clock. As we know, he made all arrangements to comply with those directions. He made other arrangements as well. Since it was out of the question for him to come to Scotland Yard, by skillful maneuvering he managed to interview an inspector of police at the Hotel Cecil. It was agreed that on Thursday night Von der Herts would be placed under arrest the moment he made himself known to the captain.” Hughes paused. Bray still idled with his pile of letters, while the colonel regarded him gravely. “Poor Fraser-Freer!” Hughes went on. “Unfortunately for him, Von der Herts knew almost as soon as did the inspector that a plan was afoot to trap him. There was but one course open to him: He located the captain’s lodgings, went there at seven that night, and killed a loyal and brave Englishman where he stood.” A tense silence filled the room. I sat on the edge of my chair, wondering just where all this unwinding of the tangle was leading us.