‘The meeting of the board took place at eleven o’clock. When half past eleven came, and Wu Ling had not put in an appearance, the secretary rang up the Russell Hotel. In answer to his inquiries, he was told that the Chinaman had gone out with a friend about half past ten. It seemed clear that he had started out with the intention of coming to the meeting, but the morning wore away, and he did not appear. It was, of course, possible that he had lost his way, being unacquainted with London, but at a late hour that night he had not returned to the hotel. Thoroughly alarmed now, Mr Pearson put matters in the hands of the police. On the following day, there was still no trace of the missing man, but towards evening of the day after that again, a body was found in the Thames which proved to be that of the ill-fated Chinaman. Neither on the body, nor in the luggage at the hotel, was there any trace of the papers relating to the mine.
‘At this juncture, mon ami, I was brought into the affair. Mr Pearson called upon me. While profoundly shocked by the death of Wu Ling, his chief anxiety was to recover the papers which were the object of the Chinaman’s visit to England. The main anxiety of the police, of course, would be to track down the murderer—the recovery of the papers would be a secondary consideration. What he wanted me to do was to co-operate with the police while acting in the interests of the company.
‘I consented readily enough. It was clear that there were two fields of search open to me. On the one hand, I might look among the employees of the company who knew of the Chinaman’s coming; on the other, among the passengers on the boat who might have been acquainted with his mission. I started with the second, as being a narrower field of search. In this I coincided with Inspector Miller, who was in charge of the case—a man altogether different from our friend Japp, conceited, ill-mannered and quite insufferable. Together we interviewed the officers of the ship. They had little to tell us. Wu Ling had kept much to himself on the voyage. He had been intimate with but two of the other passengers—one a broken-down European named Dyer who appeared to bear a somewhat unsavoury reputation, the other a young bank clerk named Charles Lester, who was returning from Hong Kong. We were lucky enough to obtain snapshots of both these men. At the moment there seemed little doubt that if either of the two was implicated, Dyer was the man. He was known to be mixed up with a gang of Chinese crooks, and was altogether a most likely suspect.
‘Our next step was to visit the Russell Square Hotel. Shown a snapshot of Wu Ling, they recognized him at once. We then showed them the snapshot of Dyer, but to our disappointment, the hall porter declared positively that that was not the man who had come to the hotel on the fatal morning. Almost as an afterthought, I produced the photograph of Lester, and to my surprise the man at once recognized it.
‘ “Yes, sir,” he asserted, “that’s the gentleman who came in at half past ten and asked for Mr Wu Ling, and afterwards went out with him.”
‘The affair was progressing. Our next move was to interview Mr Charles Lester. He met us with the utmost frankness, was desolated to hear of the Chinaman’s untimely death, and put himself at our disposal in every way. His story was as follows: By arrangement with Wu Ling, he called for him at the hotel at ten-thirty. Wu Ling, however, did not appear. Instead, his servant came, explained that his master had had to go out, and offered to conduct the young man to where his master now was. Suspecting nothing, Lester agreed, and the Chinaman procured a taxi. They drove for some time in the direction of the docks. Suddenly becoming mistrustful, Lester stopped the taxi and got out, disregarding the servant’s protests. That, he assured us, was all he knew.