"That won't stand in court! We don't dare to arrest this man Cheney on that. You've got to get something on him."

"Plant it?"

"No! Get it straight. And we can't wait for this expedition to start, either. That would be taking too much of a chance. It's up to you to do a little speedy work in the research line. Dig back into the count's past and find something on which we can hold him, for he's very evidently the brains of the organization, in spite of the fact that he probably is working only for what he can get of that fund that the Germans have raised. I understand that it's sixteen million dollars and that's enough to tempt better men than Cheney. Now go to it, and remember—you've got to work fast!"

Disappointed, chagrined by the air of finality with which the receiver at the Washington end of the line was hung up, Randall wandered out of the New York office with a scowl on his face and deep lines of thought between his eyes. If he hadn't been raised in the school which holds that a man's only irretrievable mistake is to quit under fire, he'd have thrown up his job right there and let some one else tackle the work of landing the count. But he had to admit that the chief was right and, besides, there was every reason to suppose that grave issues hung in the balance. The invasion of Canada meant the overthrow of American neutrality, the failure of the plans which the President and the State Department had so carefully laid.

Cheney was the crux of the whole situation. Once held on a charge that could be proved in court, the plot would fall through for want of a capable leader—for the operative had learned enough during his hour in the cloak-room to know that "the count" was the mainspring of the whole movement, despite the fact that he undoubtedly expected to reap a rich financial harvest for himself.

Selecting a seat on the top of a Fifth Avenue bus, Randall resigned himself to a consideration of the problem.

"The whole thing," he figured, "simmers down to Cheney himself. In its ramifications, of course, it's a question of peace or war—but in reality it's a matter of landing a crook by legitimate means. I can't plant a gun on him, like they did on Heilman, and there's mighty little chance of connecting him with the Branchfield case or the van Husen emeralds at this late date. His conduct around town has certainly been blameless enough. Not even any women to speak of. Wait a minute, though! There were two. The blond from the Knickerbocker and that red-haired dame. He's still chasing around with the blond—but what's become of Miss Red-head?"

This train of thought had possibilities. If the girl had been cast aside, it was probable that she would have no objection to telling what she knew—particularly as the color of her hair hinted at the possession of what the owner would call "temperament," while the rest of the world forgets to add the last syllable.

It didn't take long to locate the owner of the fiery tresses. A quick round-up of the head waiters at the cafés which Cheney frequented, a taxi trip to Washington Square and another to the section above Columbus Circle, and Randall found that the red-haired beauty was known as Olga Brainerd, an artist's model, whose face had appeared upon the cover of practically every popular publication in the country. She had been out of town for the past two months, he learned, but had just returned and had taken an apartment in a section of the city which indicated the possession of considerable capital.

"Miss Brainerd," said Randall, when he was face to face with the Titian beauty in the drawing-room of her suite, "I came with a message from your friend, Carl Cheney."