Lanson's voice in quietly modulated tones reached the Hawk:

“Yes, both trains are on time to the minute; I've taken care of that. And so far there doesn't seem to be a hitch anywhere, and with your men boarding the trains west of here at different stations along the line, and mixing quietly with the passengers, I don't see how any one could be the wiser on that score. Yes, it looks as though everything were all right—eh, MacVightie?”

“I don't know; I hope so,” MacVightie's deep growl came in reply. “Anyhow, we've carried out instructions from Washington, and it's up to the Secret Service crowd as to how it pans out.”

“No, it isn't!” declared Lanson, still quietly. “It isn't up to a soul on earth except those of us who have got the responsibility of this division on our shoulders! I believe the plan is a good one, but because it came from Washington doesn't let us out—not for a minute! What about Birks; has he shown up yet?”

“Not yet,” MacVightie answered—and swore suddenly under his breath. “And I don't mind admitting that the crowd down there in Washington make me tired! It's over two weeks ago that I put it up to them. They said they would take the matter under consideration, and in any case would send one of their men, this Birks, out here to make an investigation. But nothing doing! Then, as you know, I wrote them again a week ago, when we knew this Alaskan gold shipment was coming through, and you know their reply; they outlined a plan for us, and stated definitely that Birks would be on deck to-night. Maybe he will—in time to tell us what we should have done!”

“The Secret Service isn't a police force,” said Lanson tersely. “The only excuse they would have for acting at all would be if your pet theory were correct—that the Hawk and his gang, apart from their systematised murders and robberies, were also the ones who have been flooding the country with those counterfeit ten-dollar notes. You had no actual proof to offer, and Washington evidently hasn't felt quite so sure about it as you have. However, there's no use discussing that to-night. If Birks shows up, all right; if he doesn't—well, I don't see that he could make any difference one way or the other now.”

There was silence for a moment, then Lanson spoke again.

“What worries me as much as anything,” he said slowly, “is the express company making a shipment of money at the same time—forty thousand dollars in the car's safe. Of course, it's logical enough with a half million to guard anyway, but it's an added incentive to those, devils, that's all. A half million In raw gold isn't any easy thing to pick up and walk off with, and there's more than an even chance that the Wire Devils might pass it up on that account; but with banknotes alone in so large an amount——”

“If they know about it!” interrupted MacVightie brusquely. “And it's not likely they do! You can't send a heavily guarded express car on from the coast and keep it mum that gold is going through, especially when the papers print pictures of the cases being swung out of the steamer's hold on arrival from Alaska—but the other's different. I'm not banking on them passing up the gold on any account, though they may, at that; but in any case they'll be welcome to open the safe now, won't they?”

Again there was an instant's silence; and the Hawk now, as though fearful of losing a word that might be spoken, strained forward closer still to the side of the window.