"Hello!" he shouted to his companions. "Watch me duck under and see how long I stay down."
Lieutenant Dale and Al stopped motionless to watch him. Wallace crouched down in the water, then sprang erect as high as possible and, jumping forward, disappeared head first into the deeper pool. At the very instant when he turned over in the air his companions were electrified to hear the report of a musket from the base of the butte just below them, and as Wallace went out of sight they saw the bullet kick up a jet of spray apparently not two inches above his back. Wheeling round they saw a feather of smoke rise from the bushes at the further end of the butte, and without a word both of them dashed out of the river to the spot where their clothes lay. Each one of the three had his revolver with him, as always, and in less time than it takes to tell it Al and the Lieutenant, stark naked, had their weapons in their hands. Al heard a splash in the river below them. He sprang down to the water's edge and peered through the bushes. Not thirty yards away an Indian was riding his pony into the stream and Al raised his revolver and fired. The pony sunk to its knees and toppled over, flinging its rider into the water, but the warrior was up again in an instant and waded quickly back to the shore, where he disappeared behind the butte. At this moment Wallace rushed up and caught his revolver from its holster.
"He's back of the butte," cried Lieutenant Dale. "We can head him off. You stay here and watch the river, Smith. Come on, Briscoe."
He and Al hastened off around the landward side of the butte, while Wallace crouched down by the river bank to shoot at the Indian if he should attempt to cross. As Al and his companion cautiously made their way to a point where they could look down the valley they saw that the wide interval extending from their position to the next detached butte down river was quite open and covered only with short grass, which afforded little or no cover. Nevertheless, even as they looked they saw the Indian run out from the bushes upon the open space and start on a run across it. The Lieutenant and Al both fired at him and the bullets must have come very close, for he immediately veered and ran again into the river. But the hunted warrior had no sooner reached it than they heard the crack of Wallace's revolver, around on the other side of the butte, and a moment later the Indian, evidently despairing of being able to escape alive, walked up on the bank once more with his rifle held aloft in sign of surrender.
Al and the Lieutenant emerged from the bushes and advanced toward him, taking the precaution, however, to keep him covered with their revolvers. Neither of them was struck at the moment by the ridiculous appearance they presented, "clad only with revolvers," as Lieutenant Dale expressed it, but they often laughed about it afterward. The Indian, an ugly, low-browed, flat-nosed specimen of his race, came up to them and Lieutenant Dale disarmed him, taking his musket and a knife concealed in his blanket. Then, keeping him ahead of them, they marched him back to the place where Wallace had remained, by the horses. Here they bound his hands with a saddle strap and, after dressing, started back to camp, making the prisoner walk in front of them.
Their appearance created an uproar of excitement, and questions and congratulations poured upon them from every side, but they pushed their way steadily through the crowd until they reached headquarters and presented their prisoner to General Sully. The latter immediately sent for an interpreter, and then began a severe cross-examination of the captive. He proved surly, and his answers were short and most of them plainly false, until the General sharply informed him that he would be hanged immediately if he did not answer fully, and that he would be hanged later if his answers proved to be untruthful. He then suddenly found his tongue and became a model witness.
According to his statement, he was an Upper Yanktonais, and was simply watching the army as a scout when he saw Lieutenant Dale and his companions go in swimming; and, thinking that he could escape across the river, had decided to try and pick one or more of them off. He admitted that there were many scouts of the hostiles in the vicinity, but said that most of them were held far back from the army by the presence of General Sully's scouts. Asked as to the hostile army and its location, he hesitated, but finally replied that the camps were very great and were in a very strong position on the headwaters of the Knife River, a considerable distance north of the Cannonball. He declared the camps contained so many warriors that the Indians were sure of easily defeating the white army, and proposed to stand and fight before their encampment.
Having extracted all the information from the prisoner which seemed possible, General Sully was about to dismiss him with instructions that he be kept under close guard until further orders, when Al stepped up and said in a low tone,
"General, he says he is an Upper Yanktonais. Would you mind asking him whether he knows anything about my brother or about the Indian who holds him?"
"Why, certainly I will," replied the General. "I ought to have thought of that myself."