Crouched back beside the trail the Wolf watched and waited. He knew what the Sergeant would do; having lost the trail of his quarry he would camp there, beside good water, tether his horse to the picket-pin by the hackamore rope, eat, and sleep till daylight, which would come about three o'clock; then he would cast about for the Wolf's tracks, gallop along the southern trail, and when he did not pick them up would surmise that Jack had cut across the muskeg land; then he would round the southern end of the swamp and head for the railway.

"I must get him," the Wolf muttered mercilessly; "gentle him if I can, if not—get him."

He saw the Sergeant unsaddle his horse, picket him, and eat a cold meal; this rather than beacon his presence by a glimmering fire.

The Wolf, belly to earth, wormed closer, slithering over the gillardias, crunching their yellow blooms beneath his evil body, his revolver held between his strong teeth as his grimy paws felt the ground for twigs that might crack.

If the Sergeant would unbuckle his revolver belt, and perhaps go down to the water for a drink, or even to the horse that was at the far end of the picket line, his nose buried deep in the succulent wild-pea vine, then the Wolf would rush his man, and the Sergeant, disarmed, would throw up his hands.

The Wolf did not want on his head the death of a Mounted Policeman, for then the "Redcoats" would trail him to all corners of the earth. All his life there would be someone on his trail. It was too big a price. Even if the murder thought had been paramount, in that dim light the first shot meant not overmuch.

So Jack waited. Once the horse threw up his head, cocked his ears fretfully, and stood like a bronze statue; then he blew a breath of discontent through his spread nostrils, and again buried his muzzle in the pea vine and sweet-grass.

Heath had seen this movement of the horse and ceased cutting at the plug of tobacco with which he was filling his pipe; he stood up, and searched with his eyes the mysterious gloomed prairie.

The Wolf, flat to earth, scarce breathed.

The Sergeant snuffed out the match hidden in his cupped hands over the bowl, put the pipe in his pocket, and, revolver in hand, walked in a narrow circle; slowly, stealthily, stopping every few feet to listen; not daring to go too far lest the man he was after might be hidden somewhere and cut out his horse. He passed within ten feet of where the Wolf lay, just a gray mound against the gray turf.