If ever Roland Yorke went nigh to lose his mind, it was now. Strangers thought he must be a candidate for Bedlam. Totally neglecting the exigencies of the office, he went tearing about like a lunatic. From one place to another, from this spot to that, backwards and forwards and round again, strode Roland, as if his legs went on wires. His aspect was fierce, his hair wild. The main resting-posts, at which he halted by turns, were Scotland Yard, Waterloo Bridge, and the London docks. The best that Roland's dark fears could suggest was, that Arthur had been murdered. Murdered for the sake of the money he had about him, and then put quietly out of the way. Waterloo Bridge, bearing a reputation for having been a former chosen receptacle for mysterious carpet-bags, was of course pitched upon by Roland as an ill-omened element in the tragedy now. It had also just happened that a man, drowned from one of the bridges, had been found in the London docks: having drifted in, no doubt, with an entering or leaving ship. This was quite enough for Roland. Morning after morning would find him there; and St. Katharine's docks, being nearer, sometimes had him twice in the day. Putting aside Roland's migrations, and his outspoken fears of dark deeds, others, interested, were to the full as much alarmed as he. The facts were more than singular; they were mysterious. From the time that Arthur Channing had entered the hotel in Norfolk Street, or--to be strictly correct--from a few minutes subsequent to that, when the waiter, Binns, had left him in the coffee-room, he seemed to have disappeared. The police could make nothing of it. Mr. Galloway, who had been at once communicated with by Hamish Channing, was nearly as much assailed by fears as Roland, and sent up letters or telegrams every other hour in the day. The first and most natural theory taken up, as to the cause of the disappearance, was this--that Arthur Channing had received some news, amidst the letters given to him, that caused him to absent himself. But for the circumstance of the letter (written by Charles Channing on board the P. and O. steamer, and posted at Marseilles) _not_ having been handed to Arthur, it might have been assumed that it had contained bad news of Charles, and that Arthur had hastened away to him. As the letter was omitted to be given to him--and it was an exceedingly curious incident in the problem that it should so have fallen out--this hope could not be entertained: Charles was well; and by that time, no doubt, in Paris enjoying himself. But, even had circumstances enabled them to take up this hope, it could not have lasted long: had Arthur been called suddenly away, to Charles, or elsewhere, he would not have failed to let his friends know it.