Long Sin was making his rounds, visiting all those whom the glitter of Wu's money could corrupt.

Suddenly from the shadows of a narrow street, lined with the stores of petty Chinese merchants, half a dozen lithe and murderous figures leaped out behind Long Sin and seized him. He struggled, but they easily threw him down.

Any one who has visited Chinatown knows that at every corner and bend of the crooked streets stands a policeman. It was scarcely a second before the noise of the scuffle was heard, but it was too late. The half dozen Tong men had seized the money which Long Sin carried and had deftly stripped him of everything else of value.

The sound of the approaching policeman now alarmed them. Just as the new Tong leader had raised an axe to bring it down with crushing force on Long Sin's skull a shot rang out and the axe fell from the broken wrist of the Chinaman.

In another moment the policeman had seized him. Then followed a sharp fight in which the Tong men's knowledge of jiu-jitsu stood them in good stead. The policeman was hurled aside, the Tong leader broke away, and one by one his followers disappeared through dark hallways and alleyways, leaving the policeman with only two prisoners and Long Sin lying on the sidewalk.

But the ring and the money were gone.

"Are you hurt much?" demanded the burly Irish officer, a.s.sisting Long Sin to his feet, none too gently.

Long Sin was furious over the loss of the precious ring, yet he knew to involve himself in the white man's law would end only in disaster both for him and his master. He forced a painful smile, shook his head and managed to get away down the street muttering.

He made his way up-town and back to the apartment of Wu, and there, pacing up and down in a fury, attended to his wounds.

His forefinger, from which the ring had been so ruthlessly s.n.a.t.c.hed, was a constant reminder to him of the loss. Any one who could have studied the vengefulness of his face would have seen that it boded ill for some one.

It was the day after her return from Aunt Tabby's that Kennedy called again upon Elaine to find that she and Aunt Josephine were engaged in the pleasant pastime of arranging an entertainment.

Jennings announced Craig and held back the portieres as he entered.

"Oh, good!" cried Elaine as she saw him. "You are just in time. I was going to send you this, but I should much rather give it to you."

She handed him a tastefully engraved sheet of paper which he read with interest:

Miss Elaine Dodge requests the honor of your presence at an Oriental Reception on April 6th, at 8 o'clock.

"Very interesting," exclaimed Craig enthusiastically. "I shall be delighted to come."

He looked about a moment at the library which Elaine was already rearranging for the entertainment.

"Then you must work," she cried gaily. "You are just in time to help me buy the decorations. No objections--come along."

She took Kennedy's arm playfully.

"But I have a very important investigation for the Coroner that I am--"

"No excuses," she cried, laughingly, dragging him out.

Among the many places which Elaine had down on her shopping list was a small Chinese curio shop on lower Fifth avenue.

They entered and were greeted with a profound bow by the proprietor. He was the new Tong leader, and this up-town shop was his cover. In actual fact, he was what might have been called a Chinese fence for stolen goods.

In their interest in the wealth of strange and curious ornaments displayed in the shop they did not notice that the Chinaman's wrist was bound tightly under his flowing sleeve.

Elaine explained what it was she wanted, and with Kennedy's aid selected a number of Chinese hangings and decorations. They were about to leave the shop when Elaine's eye was attracted by a little show case in which were many quaint and valuable Chinese ornaments in gold and silver and covered ivory.

"What an odd looking thing," she said, pointing out a k.n.o.bbed ring which reposed on the black velvet of the case.

"Quite odd," agreed Kennedy.

The subtle Chinaman stood by the pile of hangings on the counter which Elaine had bought, overjoyed at such a large sale. Praising the ring to Elaine, he turned insinuatingly to Kennedy. There was nothing else for Craig to do--he bought the ring, and the Chinaman proved again his ability as a merchant.

From the curio shop where Elaine had completed her purchases they drove to Kennedy's laboratory.

I had been at work on a story for the Star when they entered.

"You will be there, too, Mr. Jameson?" coaxed Elaine, as she told of their morning's work.

I needed no urging.

We were in the midst of planning the entertainment when a slight cough behind me made me start and turn quickly.

There stood Long Sin, the astute Chinaman who had delivered the bomb to Kennedy and had betrayed Bennett. We had seen very little of him since then.

Long Sin bowed low and shuffled over closer to Kennedy. I noticed that Elaine eyed Long Sin sharply. But as yet we had seen no reason to suspect him, so cleverly had he covered his tracks. Kennedy, having used him once to capture Bennett, was still not unwilling to use him in attempting to discover where Bennett's hidden millions lay.

"I am in great trouble, Professor Kennedy," began Long Sin in a low tone. "You don't know the Chinese of the city, but if you did you would know what blackmailers there are among them. I have refused to pay blackmail to the Chong Wah Tong, and since then it has been trouble, trouble, trouble."

Kennedy looked up quickly at the name Chong Wah Tong, thinking of the investigation which the Coroner had asked him to make into the murder.

He and Long Sin moved a few steps away, discussing the affair.

Elaine and I were still talking over the entertainment.

She happened to place her hand on the desk near Long Sin. My back was toward him and I did not see him start suddenly and look at her hand.

On it was the ring--the ring which, unknown to us, Long Sin had found in the pa.s.sageway under Aunt Tabby's garden, of which he had been robbed, and which now, by a strange chance, had come into Elaine's possession.

It was a peculiar situation for Long Sin, although as yet we did not know it. He could not lay claim to the mystic ring, for then Kennedy would make him prove his ownership, and the whole affair of which we still knew nothing would be exposed.

He acted quickly. Long Sin decided to recover the ring by stealth.

Elaine was still talking enthusiastically about her party, when Long Sin turned from Kennedy and moved toward us with a bow.

"The lady speaks of an Oriental reception," he remarked. "Would she care to engage a magician?"

Elaine turned to him surprised. "Do you mean that you are a magician?"

she asked, puzzled.

Long Sin smiled quietly. He reached over and took a small bottle from Kennedy's laboratory table. Holding it in his hand almost directly before us, he made a few sleight-of-hand pa.s.ses, and, presto! the bottle had disappeared. A few more pa.s.ses, and a test tube appeared in its place. Before we knew it he had caused the test tube to disappear and the bottle to reappear. We all applauded enthusiastically.

"I don't think that is such a bad idea after all," nodded Kennedy to Elaine.

"Perhaps not," she agreed, a little doubtfully. "I hadn't intended to have such a thing, but--why, of course, that would interest everybody."