He formed a rapid impression of the handsome young man as they exchanged a few conventional words of greeting. Rather impulsive, generous, easy-going, not burdened with any great excess of mentality, likely to be easily exploited by designing persons, trusting and unsuspicious. The young nobleman was perfectly straightforward as to the object of his visit, and made no attempt to beat about the bush. “The plain truth, Mr. Grewgus, is that I have made a fool of myself,” he told him. “Shelford, whose firm has acted for us for years, since my grandfather’s time, says there is no doubt it is a blackmailing case, and advised me to come here and tell you the whole story from the beginning to the very unpleasant end.” “That will certainly be the best plan, Lord Wraysbury; Mr. Shelford told me as much over the ’phone. When I have learned all the details, it will be possible for me to tell you if I can help you.” The young nobleman, in his pleasant, well-bred voice, proceeded to unfold the history of the relations with Mrs. Edwards--perfectly innocent relations he urged with a warmth that was undoubtedly genuine, which had led to the present trouble. A couple of years ago he had met at Monte Carlo a Mrs. and Miss Glenthorne, mother and daughter. Miss Glenthorne was a very charming and attractive girl; the mother seemed somewhat of a nonentity and kept herself in the background, giving pride of place to her clever and particularly fascinating offspring. At this point Grewgus interrupted his client. “One moment, please. Is this Mrs. Glenthorne a stoutish woman, with a Jewish type of countenance?” “Yes, I should certainly say there was more than a touch of the chosen race about her,” was the reply. “You know her, then?” “I can hardly say as much as that, Lord Wraysbury. I have seen her once or twice, but I have never spoken to her. The point of importance so far as you are concerned is that I know something of her, also something of the daughter. Tell me, does not the young lady wear on every possible occasion a pendant of a very peculiar design, a big sapphire set in an unusual manner?” Again the answer was in the affirmative. The young man was naturally greatly surprised at the detective’s display of knowledge. “It seems I’ve come to the right place,” he remarked with an almost boyish glee. “I infer from your manner that what you know about them is not anything to their credit.” Grewgus smiled with his somewhat enigmatic smile. “I think I would rather wait till the end of your story before I say anything, if you don’t mind. I shall interrupt you as little as possible, and when I do it will only be for the purpose of clearing up some point that suddenly suggests itself.”