These minute instructions I took care to carry out to the letter. I confess that I walked up the Tottenham Court Road by no means blindly, but with an uneasy sense that I was coming to a decisive point in my life. The noise and rumor of the crowded pavements were to me but dumb-show. I revolved again and again in ceaseless iteration the task that had been laid on me, and I questioned myself as to the possible results. As I got near the point of turning, I asked myself whether danger were not about my steps; the cold thought struck me that I was suspected and observed, and every chance foot-passenger who gave me a second glance seemed to me an officer of police. My time was running out, the sky had darkened, and I hesitated, half resolved to go no farther, but to abandon Lipsius and his friends forever. I had almost determined to take this course, when the conviction suddenly came to me that the whole thing was a gigantic joke, a fabrication of rank improbability. Who could have procured the information about the Armenian agent, I asked myself. By what means could Lipsius have known the particular day, and the very train that Mr. Headley was to take? How engage him to enter one special cab amongst the dozens waiting at Paddington? I vowed it a mere Milesian tale, and went forward merrily, and turned down Vincent Street, and threaded out the route that Lipsius had so carefully impressed upon me. The various streets he had named were all places of silence and an oppressive cheap gentility; it was dark, and I felt alone in the musty squares and crescents, where people pattered by at intervals, and the shadows were growing blacker. I entered Sheen Street, and found it, as Lipsius had said, more a passage than a street; it was a by-way, on one side a low wall and neglected gardens and grim backs of a line of houses, and on the other a timber yard. I turned the corner, and lost sight of the square, and then to my astonishment I saw the scene of which I had been told. A hansom cab had come to a stop beside the pavement, and an old man carrying a handbag was fiercely abusing the cabman, who sat on his perch the image of bewilderment. "Yes, but I'm sure you said Sheen Street, and that's where I brought you," I heard him saying, as I came up, and the old gentleman boiled in a fury, and threatened police and suits at law. The sight gave me a shock; and in an instant I resolved to go through with it. I strolled on, and without noticing the cabman, lifted my hat politely to old Mr. Headley. "Pardon me, sir," I said, "but is there any difficulty? I see you are a traveller; perhaps the cabman has made a mistake. Can I direct you?" The old fellow turned to me, and I noticed that he snarled and showed his teeth like an ill-tempered cur as he spoke.