"Let's get down to brass tacks," said he, drawing his chair up to the table. "I'm almost myself again. The subtle stuff has got out of my brain, at last. Generalities and day-dreams are all very well, Flint, but we've got to lay out some definite line of campaign. And the sooner we get to it the better."

"Hm!" sneered Flint. "If it's not more practical than your action in giving Herzog that blank check, it won't be worth much. As an extravagant action, Wally, I've never seen it equalled. I'm astonished, indeed I am!"

Waldron laughed easily.

"Don't worry," he answered his partner. "That temporary aberration of judgment, due to oxygen-stimulus, will have no results. Herzog won't dare fill out the check, anyhow, because he knows he'd get into trouble if he did; and even though he should, he can collect nothing. I'll have payment stopped, at once, on that number. No danger, Flint!"

"I don't know," mused the Billionaire. "It may be that this man has us just a little under his thumb. He, and he alone, understands the process. We've got to treat him with due consideration, or he may leave us and carry his secret to others—to Masterson, for instance, or the Amalgamated people, or—"

"Nothing doing on that, old man!" interrupted "Tiger." "Have no fear. The first move he makes, off to Sing Sing he goes, the way we jobbed Parker Hayes. Slade and the Cosmos Agency can take care of him, all right, if he asserts himself!"

"Very likely," answered Flint, who had now at last entirely recovered his sang-froid. "But in that event, our work would be at a standstill. No, Waldron, we mustn't oppose this fellow. Better let the check go through, if he has nerve enough to fill it out and cash it. He won't dare gouge very deep; and no matter what he takes, it won't be a drop in the ocean, compared to the golden flood now almost within our grasp!"

Waldron pondered a moment, then nodded assent.

"All right. Correct," he finally answered. "So then, we can dismiss that trifle from our minds. Now, to work! We've got the process we were after. What next?"

"First of all," answered the Billionaire, "we'll let this Herzog understand that he's to have a share in the results; that in this, as in everything so far, he's merely a tool—and that when tools lose their cutting edge we break 'em. He's a meek devil. We can hold him easily enough."