"Look yonder," Hurley said, suddenly.

Keith McBain turned to look in the direction indicated. Further up stream a little shack stood, with one corner already projecting over the edge of the bank. In a few hours at most the ground upon which it stood would be swept away and the shack with it.

Without losing a moment they hurried back to MacMurray's and called out the men who had not yet retired for the night. In less than five minutes, more than a score were at work, and before another half hour had passed, the shack had been moved back upon safe ground.

By the time the excitement was over there was not a man left in either MacMurray's or Cheney's. Everyone was out, either to help or look on. Keith McBain had left and gone back with Hurley to the office when the immediate danger was past. They were not in the crowd when Gabe Smith came running excitedly to the men to announce that the bank was falling away just above the place where the corral and equipment sheds had been built during the week.

At once the men hurried toward the corral. For a few minutes there was much excited and aimless running about on the part of the men, without any organization, and without any plan. Soon, however, there emerged certain unfailing indications that a part of the gang, at any rate, were under direction. Gabe Smith was probably the first to observe it, and his suspicions were confirmed when he saw McCartney's huge frame moving among the men. There was organization, but designed to frustrate all efforts to save the buildings, rather than to assist.

Gabe left the crowd of men, who were already wrangling among themselves, and hurried to find Keith McBain. He had his hand upon the door of the office and was about to open it, when he felt himself seized by the shoulder and hurled back so violently that he stumbled and fell to the ground.

He looked up and saw McCartney standing over him.

"Stay out of the way, you old crust," McCartney said, "an' you won't get hurt."

In a moment the office door was opened and Hurley was standing in the lighted doorway, with McBain behind him.

"What's wrong?" demanded Hurley.