the gentleman from the settee. I continued to talk—rather blatantly, I fear—commenting on the careful treatment of the hair and the backs of the ears; and meanwhile took an occasional swift glance at the man opposite. He appeared to be gazing in wrapt admiration at the bust, but his glance, too, occasionally wandered; and when it did, the "point of fixation," as the oculists would express it, was Sylvia's crucifix, which was still uncovered.
Presently I ventured to take a good, steady look at him and was for a few moments unobserved. His left eye moved, as I could see, quite smoothly and evenly from point to point; but the right, at each change of position, gave a little, rapid, vertical oscillation. Suddenly he became aware of my, now undisguised, inspection of him, and, immediately, the oscillation became much more marked, as is often the case with these spasmodic movements. Perhaps he was conscious of the fact; at any rate, he turned his head away and then moved off to examine a statuette that stood near the middle of the room.
I looked after him, wondering what I ought to do. That he was the man whom I had seen on the two previous occasions I had not the slightest doubt, although I was still unable to identify his features or anything about him excepting the nystagmus and the left-handed condition. But there could be no question that he was the same man; and this very variability in his appearance only gave a more sinister significance to the affair, pointing clearly, as it did, to careful and efficient disguise. Evidently he had been, and still was, shadowing me, and, what was still worse, he seemed to be taking a most undesirable interest in Sylvia. And yet what could I do? My small knowledge of the law suggested that shadowing was not a criminal act unless some unlawful intent could be proved. As to punching the fellow's head—which was what I felt most inclined to do—that would merely give rise to disagreeable, and perhaps dangerous, publicity.
"My lord is pleased to meditate," Sylvia remarked at length, breaking in upon my brown study.
"I beg your pardon," I exclaimed. "The fact is I was wondering what we had better do next. Do you want to see anything else?"
"I should rather like to see the outside of the building," she answered. "That man has made me quite nervous."
"Then we will go at once, and we won't sign the visitor's book."
I led her to the door, and, as we rapidly descended the carpeted stairs, I considered once more what it were best to do. Had I been alone I would have kept our watcher in view and done a little shadowing on my own account; but Sylvia's presence made me uneasy. It was of the first importance that this sinister stranger should not learn where she lived. The only reasonable course seemed to be to give him the slip if possible. "What did you make of that man?" Sylvia asked when we were outside in the square. "Don't you think he was watching us?"
"Yes, I do. And I may say that I have seen him before."
She turned a terrified face to me and asked: "You don't think he is the wretch who pushed you into the river?"
Now this was exactly what I did think, but it was not worth while to say so. Accordingly I temporized. "It is impossible to say. I never saw that man, you know. But I have reason for thinking that this fellow is keeping a watch on me, and it occurs to me that, if he appears still to be following us, I had better put you into a hansom and keep my eye on him until you are out of sight."
"Oh, I'm not going to agree to that," she replied with great decision. "I don't suppose that my presence is much protection to you, but still, you are safer while we are together, and I'm not going to leave you."
This settled the matter. Of course she was quite right. I was much safer while she was with me, and if she refused to go off alone, we must make our escape together. I looked up the square as we turned out of it towards the Charing Cross Road, but could see no sign of our follower, and, as we walked on at a good pace, I hoped that we might get clear away. But I was not going to take any chances. Before turning homewards, I decided to walk sharply some distance in an easterly direction and then see if there was any sign of pursuit; for my previous experiences of this good gentleman led me to suspect that he was by no means without skill and experience in the shadowing art.
We walked down to Charing Cross and turned eastward along the north side of the Strand. I had chosen this thoroughfare as offering a good cover to a pursuer, who could easily keep out of sight among the crowd of way-farers who thronged the pavement for the first question to be settled was whether we were or were not being shadowed. "Where are we going now?" Sylvia asked.
"We are going up Bedford Street," I answered. "There is a book shop on the right-hand side where we can loiter unobtrusively and keep a look-out. If we see nobody, we will try one of the courts off Maiden Lane where we should be certain to catch anyone who was following. But we will try the bookstall first because, if our friend is in attendance, I have a rather neat plan for getting rid of him."
We accordingly made our way to the bookstall in Bedford Street and began systematically to look through the second-hand volumes; and as we pored over an open book, we were able to keep an effective watch on the end of the street and the Strand beyond. Our vigil was not a long one. We had been at the stall less than a minute when Sylvia whispered to me: "Do you see that man looking in the shop on the farther side of the Strand?"
"Yes," I replied, "I have noticed him. He has only just arrived, and I fancy he is our man. If he is, he will probably go into the doorway so as not to have to keep his back to us."
Almost as I spoke, the man moved into the deep doorway as if to inspect the end of the shop window, and Sylvia exclaimed: "I'm sure that is the man. I can see his profile now."
There could be no doubt of the man's identity; and, at this moment, as if to clinch the matter, he took out a cigarette and lighted it, striking the match with his left hand. "Come along," said I. "We will now try my little plan for getting rid of him. We mustn't seem to hurry."
We sauntered up to the corner of Maiden Lane and there stood for a few moments looking about us. Then we strolled across to the farther side of Chandos Street, and, as soon as we were out of sight of our follower, crossed the road and slipped in at the entrance to the Civil Service Stores. Passing quickly through the provision department, we halted at the glazed doors, from which we could look out through the Bedford Street entrance. "There he is!" exclaimed Sylvia. And there he was, sure enough, walking rather quickly up the east side of Bedford Street. "Now," said I, "let us make a bolt for it. This way."
We darted out through the china, furniture and ironmongery departments, across the whole width of the building and out of the Agar Street entrance, where we immediately crossed into King William Street, turned down Adelaide Street, shot through the alley by St. Martin's Church, and came out opposite the National Portrait Gallery just as a yellow omnibus was about to start. We sprang into the moving vehicle, and, as it rumbled away into the Charing Cross Road, we kept a sharp watch on the end of King William Street. But there was no sign of our pursuer. We had got rid of him for the present, at any rate. "Don't you think," said Sylvia, "that he will suspect that we went into the Stores?"
"I have no doubt he will, and that is where we have him. He can't come away and leave the building unsearched. Most probably he is, at this very moment, racing madly up and down the stairs and trying to watch the three entrances at the same time."
Sylvia chuckled gleefully. "It has been quite good fun," she said, " but I am glad we have shaken him off. I think I shall stay indoors for a day or two and paint, and I hope you'll stay indoors, too. And that reminds me that I am out of Heyl's white. I must call in at Robinson's and get a pound tube. Do you mind? It won't delay us more than a few minutes."
Now I would much rather have gone straight on to Hampstead, for our unknown attendant certainly knew the whereabouts of my lodgings and might follow us when he failed to find us in the stores. Moreover, I had,
