"Gentlemen, are you convinced?" demanded Mr. Wynne suddenly. "Is there one lingering doubt in any mind here as to the tremendous find which makes the production of all those possible?"

"Id iss der miracle, Mr. Vynne," admitted the German gravely, after a little pause. "Dere iss someding before us as nefer vas in der vorld. I am gonvinced!"

"Up to this moment, gentlemen, the De Beers Syndicate has controlled the diamond market," Mr. Wynne announced, "but now, from this moment, I control it. I hold it there, in the palm of my hand, with the unlimited supply back of me. I am offering you an opportunity to prevent the annihilation of the market. It rests with you. If I turn loose a billion dollars' worth of diamonds within the year you are ruined--all of you. You _know_ that--it's hardly necessary to tell you. And, gentlemen, I don't care to do it."

"What is your proposition?" queried Mr. Latham quietly. His face was ghastly white; haggard lines, limned by amazement and realization, were marked clearly on it. "What is your proposition?" he repeated.

"Wait a minute," interposed Mr. Solomon protestingly, and he turned to the young man. "The Syndicate controls the market by force of a reserve stock of ten or fifteen million dollars. Do we understand that you have more than these ready for market now?"

Mr. Wynne stooped and lifted the small sole-leather grip which had been unheeded on the floor. He unfastened the catch and turned the bag upside down upon the table. When he raised it again the a.s.sembled jewelers gazed upon a spectacle unknown and undreamed of in the history of the world--a great, glittering heap of diamonds, flashing, colorful, prismatic, radiant, bedazzling. They rattled like pebbles upon the mahogany table as they slipped and slid one against another, and then, at rest, resolved themselves into a steady, multi-colored blaze which was almost blinding.

"Now, gentlemen, on the table before you there are about thirty million dollars' worth of diamonds," Mr. Wynne announced calmly.

"They are all perfect, every one of them; and they're mine. I know where they come from; you can't find out. It's none of your business. Are you satisfied _now_?"

Mr. Latham looked, looked until his eyes seemed bursting from his head, and then, with an inarticulate little cry, fell forward on the table with his face on his arms. The German importer came to his feet with one vast Teutonic oath, then sat down again; Mr. Solomon plunged his hand into the blazing heap and laughed senselessly. The others were silent, stunned, overcome. Mr. Wynne walked around the table and replaced the spheres and replicas in his pocket, after which he resumed his former position.

"I have stated my case, gentlemen," he continued quietly, very quietly. "Now for my proposition. Briefly it is this: For a consideration I will destroy the unlimited supply. I will bind myself to secrecy, as you must; I will guarantee that no stone from the same source is ever offered in the market or privately, while you gentlemen," and his manner was emphatically deliberate, "purchase from me at one-half the carat price you now pay _one hundred million dollars' worth of diamonds!_"

He paused. There was not a sound; no one moved.

"You may put them on the market as you may agree, slowly, thus preventing any material fluctuation in value," he went on. "How to hold this tremendous reserve secretly and still permit the operation of the other diamond mines of the world is the great problem you will have to face."

He leaned over, picked up a handful from the heap and replaced them in the leather bag. The others he swept off into it, then snapped the lock.

"I will give you one week to decide what you will do," he said in conclusion. "If you accept the proposition, then six weeks from next Thursday at three o'clock I shall expect a cash payment of ten million dollars for a portion of the stones now cut and ready; within a year all the diamonds will have been delivered and the transaction must be closed." He hesitated an instant. "I'm sorry, gentlemen, if the terms seem hard, but I think, after consideration, you will agree that I have done you a favor by coming to you instead of going into the market and destroying it. I will call next Thursday at three for your answer. That is all. Good day!"

The door opened and closed behind him. A minute, two minutes, three minutes pa.s.sed and no one spoke. At last the German came to his feet slowly with a sigh.

"Anyhow, gendlemens," he remarked, "dat young man has a h.e.l.l of a lod of diamonds, ain'd id?"

CHAPTER V

THE ASTUTE MR. BIRNES

It was a few minutes past four o'clock when Mr. Wynne strode through the immense retail sales department of the H. Latham Company, and a uniformed page held open the front door for him to pa.s.s out. Once on the sidewalk the self-styled diamond master of the world paused long enough to pull on his gloves, carelessly chucking the small sole-leather grip with its twenty-odd million dollars' worth of precious stones under one arm; then he turned up Fifth Avenue toward Thirty-fourth Street. A sneak thief brushed past him, appraised him with one furtive glance, then went his way, seeking quarry more promising.

Simultaneously with Mr. Wynne's appearance three men whose watchful eyes had been fastened on the doorway of the H. Latham Company for something more than an hour stirred. One of them--Frank Claflin--was directly across the street, strolling along idly, the most purposeless of all in the hurrying, well-dressed throng; another--Steve Birnes, chief of the Birnes Detective Agency--appeared from the hallway of a building adjoining the H. Latham Company, and moved along behind Mr. Wynne, some thirty feet in the rear; the third--Jerry Malone--was half a block away, up Fifth Avenue, coming slowly toward them.

Mr. Birnes adjusted his pace to that of Mr. Wynne, step for step, and then, seeming a.s.sured of his safety from any chance glance, ostentatiously mopped his face with a handkerchief, flirting it a little to the left as he replaced it in his pocket. Claflin, across the street, understood from that that he was to go on up Fifth Avenue to Thirty-fourth Street, the next intersection, and turn west to board any crosstown car which Mr. Wynne might possibly take; and a cabby, who had been sitting motionless on his box down the street, understood from it that he was to move slowly along behind Mr.

Birnes, and be prepared for an emergency.

Half-way between Thirty-third and Thirty-fourth Streets, Jerry Malone approached and pa.s.sed Mr. Wynne without so much as a glance at him, and went on toward his chief.

"Drop in behind here," Mr. Birnes remarked crisply to Malone, without looking around. "I'll walk on ahead and turn east in Thirty-fourth Street to nail him if he swings a car. Claflin's got him going west."

Mr. Wynne was perhaps some twenty feet from the corner of Thirty-fourth Street and Fifth Avenue when Mr. Birnes pa.s.sed him. His glance lingered on the broad back of the chief reflectively as he swung by and turned into the cross street, after a quick, business-like glance at an approaching car. Then Mr. Wynne smiled. He paused on the edge of the curb long enough for an automobile to pa.s.s, then went on across Thirty-fourth Street to the uptown side and, turning flatly, looked Mr. Birnes over pensively, after which he leaned up against an electric-light pole and scribbled something on an envelope.

A closed cab came wriggling and squirming up Fifth Avenue. As it reached the middle of Thirty-fourth Street Mr. Wynne raised his hand, and the cab drew up beside him. He said something to the driver, opened the door and stepped in. Mr. Birnes smiled confidently. So that was it, eh? He, too, crossed Thirty-fourth Street and lifted his hand. The cab which had been drifting along behind him immediately came up.

"Now, Jimmy, get on the job," instructed Mr. Birnes, as he stepped in. "Keep that chap in sight and when he stops you stop."

Mr. Wynne's cab jogged along comfortably up the avenue, twisting and winding a path between the other vehicles, the while Mr. Birnes regarded it with thoughtful gaze. Its number dangled on a white board in the rear; Mr. Birnes just happened to note it.

"Grand Central Station, I'll bet a hat," he mused.

But the closed cab didn't turn into Forty-second Street; it went past, then on past Delmonico's, past the Cathedral, past the Plaza, at Fifty-ninth Street, and still on uptown. It was not hurrying-- it merely moved steadily; but once free of the snarl which culminates at the Fifty-ninth Street entrance to Central Park, its speed was increased a little. Past Sixty-fourth Street, Sixty-fifth, Sixty-sixth, and at Sixty-seventh it slowed up and halted at the sidewalk on the far side.

"Stop in front of a door, Jimmy," directed the detective hastily.

Jimmy obeyed gracefully, and Mr. Birnes stepped out, hardly half a block behind the closed cab. He went through an elaborate pretense of paying Jimmy, the while he regarded Mr. Wynne, who had also alighted and was paying the driver. The small sole-leather grip was on the ground between his feet as he ransacked his pocketbook. A settlement was reached, the cabby nodded, touched his horse with his whip and continued to jog on up Fifth Avenue.

"Now, he didn't order that chap to come back or he wouldn't have paid him," the detective reasoned. "Therefore he's close to where he is going."

But Mr. Wynne seemed in no hurry; instead he stood still for a minute gazing after the retreating vehicle, which fact made it necessary for Mr. Birnes to start a dispute with Jimmy as to just how much the fare should be. They played the scene admirably; had Mr. Wynne been listening he might even have heard part of the vigorous argument.

Whether he listened or not he turned and gazed straight at Mr. Birnes until, finally, the detective recognized the necessity of getting out of sight.

With a final explosion he handed a bill to Jimmy and turned to go up the steps of the house. He had no business there, but he must do something.

Jimmy turned the cab short and went rattling away down Fifth Avenue to await orders in the lee of a corner a block or so away. And, meanwhile, as Mr. Wynne still stood on the corner, Mr. Birnes had to go on up the steps. But as he placed his foot on the third step he knew--though he had not looked, apparently, yet he knew--that Mr.

Wynne had raised his hand, and that in that hand was a small white envelope. And further, he knew that Mr. Wynne was gazing directly at him.

Now that was odd. Slowly it began to dawn upon the detective that Mr. Wynne was trying to attract his attention. If he heeded the signal--evidently it was intended as such--it would be a confession that he was following Mr. Wynne, and realizing this he took two more steps up. Mr. Wynne waved the envelope again, after which he folded it across twice and thrust it into a crevice of a water-plug beside him. Then he turned east along Sixty-seventh Street and disappeared.

The detective had seen the performance, all of it, and he was perplexed. It was wholly unprecedented. However, the first thing to do now was to keep Mr. Wynne in sight, so he came down the steps and walked rapidly on to Sixty-seventh Street, pausing to peer around the corner before he turned. Mr. Wynne was idling along, half a block away, without the slightest apparent interest in what was happening behind. Inevitably Mr. Birnes' eyes were drawn to the water-plug across the street. A tag end of white paper gleamed tantalizingly.

Now what the deuce did it mean?

Being only human, Mr. Birnes went across the street and got the paper. It was an envelope. As he unfolded it and gazed at the address, written in pencil, his mouth opened in undignified astonishment. It was addressed to him--Steve Birnes, Chief of the Birnes Detective Agency. Mr. Wynne had still not looked back, so the detective trailed along behind, opening the envelope as he walked. A note inside ran briefly:

My address is No. ---- East Thirty-seventh Street. If it is necessary for you to see me please call there about six o'clock this afternoon.

E. VAN CORTLANDT WYNNE

Now here was, perhaps, as savory a kettle of fish as Mr. Birnes had ever stumbled upon. It is difficult to imagine a more embarra.s.sing situation for the professional sleuth than to find himself suddenly taken into the confidence of the person he is shadowing. But _was_ he being taken into Mr. Wynne's confidence? Ah! That was the question! Admitting that Mr. Wynne knew who he was, and admitting that he knew he was being followed, was not this apparent frankness an attempt to throw him off the scent? He would see, would Mr.

Birnes.

He quickened his pace a little, then slowed up instantly, because Mr.

Wynne had stopped on the corner of Madison Avenue, and as a downtown car came rushing along he stepped out to board it. Mr. Birnes scuttled across the street, and by a dexterous jump swung on the car as it fled past. Mr. Wynne had gone forward and was taking a seat; Mr. Birnes remained on the back platform, sheltered by the accommodating bulk of a fat man, and flattered himself that Mr.

Wynne had not seen him. By peering over a huge shoulder the detective was still able to watch Mr. Wynne.

He saw him pay his fare, and then he saw him place the small sole-leather grip on his knees and unfasten the catch. Not knowing what was in that grip Mr. Birnes was curious to see what came out of it. Nothing came out of it--it was empty! There was no question of this, for Mr. Wynne opened it wide and turned it upside down to shake it out. It didn't mean anything in particular to Mr. Birnes, the fact that the grip was empty, so he didn't get excited about it.

Mr. Wynne left the car at Thirty-fourth Street, the south end of the Park Avenue tunnel, by the front door, and the detective stepped off the rear end. Mr. Wynne brushed past him as he went up the stairs, and as he did so he smiled a little--a very little. He walked on up Park Avenue to Thirty-seventh Street, turned in there and entered a house about the middle of the block, with a latch-key. The detective glanced at the number of the house, and felt aggrieved--it was the number that was written in the note! And Mr. Wynne had entered with a key! Which meant, in all probability, that he _did_ live there, as he had said!

But why did he take that useless cab ride up Fifth Avenue? If he had no objection to any one knowing his address, why did he go so far out of his way? Mr. Birnes couldn't say. As he pondered these questions he saw a maid-servant come out of a house adjoining that which Mr.

Wynne had entered, an he went up boldly to question her.

Did a Mr. Wynne live next door? Yes. How long had he lived there?