"Wait," he advised, peering intently toward the ridge. "Why," he continued presently, "there's another man ridin' this way. An' he's hidin' from the other--keepin' in the gullies an' the draws so's the first man can't see him if he looks back." He laughed softly. "It's plum re-diculous. Here we are, able to see all that's goin' on down there an' not able to take a hand in it. An' there's them three goin' ahead with what they're thinkin' about, not knowin' that we're watchin' them, an' two of them not knowin' that the third man is watchin'. I'd call that plum re-diculous." The first man was still riding through the break in the ridge, coming boldly, apparently unconscious of the presence of the man among the cattle, who was well concealed from the first man's eyes by a rocky promontory at the corner of the break. The third man was not over an eighth of a mile behind the first man, and riding slowly and carefully. At the rate the first man was riding not five minutes would elapse before he would come out into the plain full upon the point where the man among the cattle was working at his fire. Ferguson and Miss Radford watched the scene with interest. Plainly the first man was intruding. Or if not, he was the rustler's confederate and the third man was spying upon him. Miss Radford and Ferguson were to discover the key to the situation presently. "Do you think that man among the cattle is a rustler?" questioned Miss Radford. In her excitement she had pressed very close to Ferguson and was clutching his arm very tightly. "I reckon he is," returned Ferguson. "I ain't rememberin' that any ranch has cows that run the range unbranded; especially when the cow has got a calf, unless that cow is a maverick, an' that ain't likely, since she's runnin' with the Two Diamond bunch." He leaned forward, for the man had left the fire and was running toward the fallen cow. Once at her side the man bent over her, pressing the hot irons against the bottoms of her hoofs. A thin wreath of smoke curled upward; the cow struggled. Ferguson looked at Miss Radford. "Burnt her hoofs," he said shortly, "so she can't follow when he runs her calf off." "The brute!" declared Miss Radford, her face paling with anger. The man was fumbling with the rope that bound the cow's legs, when the first man rode around the edge of the break and came full upon him. From the distance at which Miss Radford and Ferguson watched they could not see the expression of either man's face, but they saw the rustler's right hand move downward; saw his pistol glitter in the sunlight. But the pistol was not raised. The first man's pistol had appeared just a fraction of a second sooner, and they saw that it was poised, menacing the rustler. For an instant the two men were motionless. Ferguson felt the grasp on his arm tighten, and he turned his head to see Miss Radford's face, pale and drawn; her eyes lifted to his with a slow, dawning horror in them.