"Then we learned from her own lips, and greatly to our surprise, that her sparks were not the real thing," smiled Kilgore. "At first we could not believe it. The goods deceived even us, old hands though we are. It was only when she told us about Pylotte, and the secret process by which he makes such extraordinary imitations, that we could believe her."

"That's right, Dave."

"She had stumbled by chance upon this clever French chemist and diamond cutter, and was working him to the extent of her ability. She even had got wise to his secret, and he was loading her with his marvelous gems in return for her affection. But we at once saw the way to something much more profitable, a game for making millions out of Pylotte's great discovery."

"Right again, Dave."

"So we told them about it, and found them willing," continued Kilgore. "We rung them into our gang, and planned the whole deal. We knew it would be dead easy to work off such clever stones for genuine goods. With plenty of such sparks on hand, and one big and reputable jeweler to help us work the market, the distribution of our goods and their substitution for genuine stones would quickly throw a cool million or two our way."

"Dead easy, Dave."

"But we decided that New York was the best field for such a gigantic enterprise," added Kilgore. "So we came here. With the help of Cervera, we got our grip on Venner, and then on his avaricious partner, Garside, whose business happened to be on its last legs. So they snapped like hungry fish at this chance to square themselves, by secretly swindling their own customers, and shoving our manufactured diamonds upon the entire market."

"Like hungry fish—h'm! that's no name for it," cried Matt Stall, with a mingled growl and laugh. "Rufe Venner was as ready to become a knave as any covey I ever crossed."

"So we established this plant for Pylotte to do his clever work in," continued Kilgore, disregarding the interruption. "Luckily, Venner already owned this old mansion, as well as that in which he lives; and fortunately, both places are somewhat secluded, with extensive grounds abutting. That enabled us to frame up a very snug and safe retreat."

"Sure it did."