But who is the thin, tall man--the only sinister figure in the group--with one hand in his breast, the other on a cabinet, as he leans against the wall? Who is that pale, thin-lipped man, "with cadaverous aspect and broken beak," whose eyes never seem to light up, but maintain their dismal darkness while his pale lips smile? Those eyes are fixed on the pretty face of Alice Arden, as she talks to Lady May, with a strangely intense gaze. His eyebrows rise a little, like those of Mephistopheles, towards his temples, with an expression that is inflexibly sarcastic, and sometimes menacing. His jaw is slightly underhung, a formation which heightens the satirical effect of his smile, and, by contrast, marks the depression of his nose. There was at this time in London a Mr. Longcluse, an agreeable man, a convenient man, who had got a sort of footing in many houses, nobody exactly knew how. He had a knack of obliging people when they really wanted a trifling kindness, and another of holding fast his advantage, and, without seeming to push, or ever appearing to flatter, of maintaining the acquaintance he had once founded. He looked about eight-and-thirty: he was really older. He was gentlemanlike, clever, and rich; but not a soul of all the men who knew him had ever heard of him at school or college. About his birth, parentage, and education, about his "life and adventures," he was dark. How were his smart acquaintance made? Oddly, as we shall learn when we know him a little better. It was a great pity that there were some odd things said about this very agreeable, obliging, and gentlemanlike person. It was a pity that more was not known about him. The man had enemies, no doubt, and from the sort of reserve that enveloped him their opportunity arose. But were there not about town hundreds of men, well enough accepted, about whose early days no one cared a pin, and everything was just as dark? Now Mr. Longcluse, with his pallid face, his flat nose, his sarcastic eyebrows, and thin-lipped smile, was overlooking this little company, his shoulder leaning against the frame that separated two pieces of the pretty Dutch tapestry which covered the walls. "By-the-bye, Mr. Longcluse--you can tell me, for you always know everything," said Lady May--"is there still any hope of that poor child's recovering--I mean the one in that dreadful murder in Thames Street, where the six poor little children were stabbed?" Mr. Longcluse smiled. "I'm so glad, Lady May, I can answer you upon good authority! I stopped to-day to ask Sir Edwin Dudley that very question through his carriage window, and he said that he had just been to the hospital to see the poor little thing, and that it was likely to do well." "I'm so glad! And what do they say can have been the motive of the murder?" "Jealousy, they say; or else the man is mad." "I should not wonder. I'm sure I hope he is. But they should take care to put him under lock and key."