An old trail worn nearly a foot deep by buffaloes served his need. In this trench he was partly hidden and could make better progress. He traveled on all fours, still alert in every sense for danger.
Suddenly he sank full length into the trench. On the other side of a cactus-bush two Indians were squatting. They sat and talked.
The heart of the Ranger sank. At any moment they might discover his presence, or they might sit there the whole night and hold him prisoner in his ditch.
For an hour he lay there, wondering each moment whether the ticking of his watch might not betray him. Then, in a leisurely way, the sentries got up and sauntered toward the river. The moon was up now, and he could see their naked bodies shining in the light.
The two Kiowas stopped a moment on the bank and talked before they separated. One moved up the river; the other turned and came back directly toward Roberts. The Ranger lay in the buffalo-trail hoping that in the darkness he might escape observation. He was helpless. Even if he had brought a gun with him he dared not shoot, for if the alarm were given he would be driven out of cover in a few minutes.
The brave came forward to the very edge of the wallow. His moccasin touched the body of the prostrate man. Some slight shift of his attitude precipitated the crisis. He turned to listen to some sound, and his foot pressed upon the leg of the Ranger.
There was an instant volcanic upheaval. The Indian, startled, leaped back. Jack was upon him like a wildcat. They struggled, their bodies so close that the Kiowa could not use his rifle. The Texan had a double advantage, that of surprise and of a more muscular body. Moreover, the redskin made the mistake of trying to cling to his gun. He was flung down to the ground hard, the white man on top of him.
Jack became aware that the Indian was going to shout, and knew that if he did all was lost. His strong, brown fingers closed on the throat of the brave. There was a wild thrashing of limbs in a struggle to escape. The grip tightened, cut off a gurgle of escaping air. The naked arms and legs jerked more feebly....
When Roberts crept away into the darkness he carried with him the knife of the Kiowa. The rifle would only have hampered him, since he had to travel fast and light.
With every yard gained now he was nearer safety. He knew he was leaving the camp behind. Presently he rose to his feet and traveled faster. For the safety of the two on the island depended upon the speed with which he covered the distance between him and Tascosa.