"Well, I can't say I'm sorry about it," he answered frankly, "if it gives me a chance of a look in at the game."

Every day the detectives employed by the Doctor reported to him Hopkins's movements, but nothing suspicious whatever occurred for some days. He spent his time visiting business houses especially connected with the China trade, and in the evenings was either at the hotel or a theatre. Then, however, he was reported to have visited, the previous evening, after dark, a large "doss-house" near the Millwall docks, a place kept by a Chinaman for the use of the Chinese firemen and the deck hands employed in the ships trading to the East. He had stayed there nearly two hours, shoved several papers into his pocket as he came out, and was accompanied to the door by two Chinese, who appeared to treat him with the greatest respect.

It happened that he had hurried away from dinner that night on the pretence of going to a theatre.

"He's a liar, at any rate," thought the Doctor, but his suspicions turned into a different and more startling channel before the morning was over.

There were two little American boys staying in the hotel who had struck up a great friendship with Hopkins. Going down the main staircase he came upon these two—fighting as usual. "Clear out of this, you young rascals!" growled the Doctor, and the two boys ran away. Two steps lower down the Doctor noticed a brightly coloured stamp on the carpet, stooped down, and found it was one of a new issue of the Patagonian Republic. "Please, sir," said one of the boys coming back, "that's ours. Mr. Hopkins, the big man who sits at your table, gave it us this morning—tore it off a big envelope."

"I've never seen one before," said the Doctor, thinking of the strange coincidence.

"Mr. Hopkins has a big crackly paper with an enormous green sealing-wax seal just like it," chimed in the boy. "You ought to see it—it's lovely!"

"Phew! that's odd," he muttered. "What's Hopkins doing with Patagonian letters? And a 'big crackly paper with an enormous green seal' means an official document, so I should think. I hardly heard of the name till Helston told me they were trying to buy his ships. Phew! I wonder if he had anything to do with that? I'll find out."

But the Patagonian agency knew nothing of Hopkins. An Austrian by the name of Von Grootze had been engaged in the negotiations for ships, so the Doctor returned puzzled.

A few days later the detectives reported that Hopkins had again visited the "doss-house" in Millwall, and that next day a very large number of Chinese had shipped for Antwerp.