The lips of the two twitched a little, and a hardly perceptible pallor indicated a passing nervousness.

“When the Scotchman got to the mine,” Oswald began, “the manager took him to ‘Gold Queen’ No. 1, as you (or as we) arranged. He remained under ground forty-eight hours. The manager was cautioned not to lose sight of him for a moment, but he gave in after thirty-six hours and went home to bed, as the Scot looked like spending a week in the bowels of the earth. When the manager returned, twelve hours later, he found Gaskell just coming to the surface. In reply to his inquiry he said he had completed his investigation and would take some rest. Whether this was merely a blind to put the manager off his guard, or whether he changed his mind, I don’t know, but after he had seen the other descend the mine, and had had some breakfast, he took the map which you gave him out of his valise and proceeded very carefully to compare it—first, with the boundaries of the No. 1 mine, which some loafing miner pointed out to him at his request, and then with the map of the same mine hanging in the company’s office, and which the manager had stupidly omitted to remove.

“As nearly as can be computed, it took that fellow just about five minutes to detect the trick. Of course this is mere guess-work, for the man himself was as silent as a clam. The profundity of his silence when he unravelled our tangled plots aroused my admiration.

“After he learned the game, he placidly descended Mine No. 2, the one of which he really held the option. He remained in that mine just sixteen hours, and all that time the manager concluded he was in bed and asleep. I’m sure I don’t know why, except on the assumption that a man must sleep sometime.

“With the assistance of an old Mexican miner, who practically lives down in that mine, in one of the shafts, he thoroughly explored the mine, more especially at that part which is in a straight line with the rich vein of No. 1.

“He had to all appearances some queer theory about that vein, for he and the old Mexican worked for more than twelve hours cutting in its direction. The result of these efforts was (it was ascertained after the purchase) that while the Mexican slept Gaskell struck a continuation of the vein belonging to No. 1. Having satisfied himself that he had struck the true vein and after taking out several specimens of the ore, he carefully covered up his ‘find,’ awoke the old man and returned to the surface.

“You will understand the discovery Gaskell had made when I tell you that from the vein in No. 1 to where it was identified in No. 2 is just 700 yards, of which 550 run through the land of No. 2, so that 11.14 of the great vein belong to the mine that Gaskell bought.

“Well, gentlemen, Gaskell sold that mine to his syndicate—it was his own venture—for $750,000, half cash, half stock, and his syndicate sold it to the public for $1,500,000. The new company has already taken $500,000 out of the mine in four months’ working, with the prospect of taking out twenty times as much in the next two years. The Scotsman’s profit of $325,000 taken in stock is now worth $1,000,000 in the market.”

Marble and his associates gazed at each other fixedly for a minute, and although their eyes spoke volumes, no word was uttered. The situation was altogether too deep for words. With one impulse they rose in grim silence from the table. “I find the air in this room suffocating,” finally ejaculated Gilbey, “let us go.”

As the now silent trio passed into the vestibule in making their exit to Fifth Avenue, Oswald shattered his preternatural calm by ejaculating: “Great Jupiter!” The exclamation was not surprising, for there, coming toward them, was Mr. Gaskell, the man they had done their best to swindle, and his bride, the beautiful and queenly Madge. For a moment a wavering in the ranks of the three was perceptible, and just the suspicion of a desire to stampede, but the expression on the expert’s face reassured them.