The crush became a little less, they all moved a step or two forward--and Wolfenden, glancing carelessly outside, found his attention immediately arrested. Just as he had been watching the girl, so was a man, who stood on the pavement side by side with the commissionaire, watching her companion. He was tall and thin; apparently dressed in evening clothes, for though his coat was buttoned up to his chin, he wore an opera hat. His hands were thrust into the loose pockets of his overcoat, and his face was mostly in the shadows. Once, however, he followed some motion of Mr. Sabin's and moved his head a little forward. Wolfenden started and looked at him fixedly. Was it fancy, or was there indeed something clenched in his right hand there, which gleamed like silver--or was it steel--in the momentary flash of a passing carriage-light? Wolfenden was puzzled. There was something, too, which seemed to him vaguely familiar in the man's figure and person. He was certainly waiting for somebody, and to judge from his expression his mission was no pleasant one. Wolfenden who, through the latter part of the evening, had felt a curious and unwonted sense of excitement stirring his blood, now felt it go tingling through all his veins. He had some subtle prescience that he was on the brink of an adventure. He glanced hurriedly at his two companions; neither of them had noticed this fresh development. Just then the commissionaire, who knew Wolfenden by sight, turned round and saw him standing there. Stepping back on to the pavement, he called up the brougham, which was waiting a little way down the street. "Your carriage, my lord," he said to Wolfenden, touching his cap. Wolfenden, with ready presence of mind, shook his head. "I am waiting for a friend," he said. "Tell my man to pass on a yard or two." The man bowed, and the danger of leaving before these two people, in whom his interest now was becoming positively feverish, was averted. As if to enhance it, a singular thing now happened. The interest suddenly became reciprocal. At the sound of Wolfenden's voice the man with the club foot had distinctly started. He changed his position and, leaning forward, looked eagerly at him. His eyes remained for a moment or two fixed steadily upon him. There was no doubt about the fact, singular in itself though it was. Wolfenden noticed it himself, so did both Densham and Harcutt. But before any remark could pass between them a little _coupé_ brougham had drawn up, and the man and the girl started forward.