"Why, in that case, of course you can go," the General replied. "But be careful; he is undoubtedly a desperate fellow. However, it isn't likely you will see him again. Most of them have gotten as far away as they can by this time." Then he added, "By the way, since you are going, watch for a practical path to the top for cavalry and wagons. The army may have to go up there, and I certainly shall to-morrow."

Al mounted Cottontail and rode away. He had hardly reached Major Camp's detachment, which had dismounted and was deploying to the right as skirmishers, when the guns of the Third Minnesota Battery began once more to boom. Their elevating-screws had been run down to the last thread in order that the muzzles might be raised enough to throw their shells upon the overhanging mountain crest. The projectiles carried to their mark, bursting in sprays of pale, orange flame high above the topmost rocks. But they did not entirely dislodge the enemy, and after a few rounds the battery was obliged to cease firing owing to the advance of the skirmish line.

Up along the steep, boulder-strewn breast of Tahkahokuty, through timber and underbrush, went the thin, irregular line, eagerly watched by the troops below and but feebly opposed by the warriors above. It was hard climbing, and more than once Al and others in the detachment stumbled and fell over stones or tree roots. As they neared the top and came into clear view from the crest, the fire of the Indians increased in intensity, though the savages continued to shoot high so that very few of the soldiers suffered. At length the cavalrymen scrambled over the last ledge, too breathless to shout in response to the hearty cheers of their comrades far below, but not too breathless to follow on a run after the Sioux who had been bold enough to await their coming and still showed fight around the ravine of the Falling Spring. The struggle was sharp and decisive but it lasted only for a moment. A few carbines and sabres clashed with lances and muskets, then the rear guard of the Sioux, unable, as always, to stand the test of hand-to-hand conflict, broke for the nearest cover behind them and disappeared in the tumbled wilderness of mountains beyond, whither their families and the bulk of their army had already gone.

Some deserted lodges stood around the triumphant Minnesotans on the lofty eminence, but they were few in number compared to those in the vast camp below. Al saw nothing of Te-o-kun-ko in the handful of warriors who fled before them; and while the men were filling their canteens at the spring of cool, crystal water which burst from the rocks near at hand, he walked along the crest of the ridge, looking for a less abrupt ascent than the one they had followed. From his position, the view spread before him in the golden glow of early twilight was magnificent. Far below and seemingly almost at his feet, lay the bivouac of the army. He could see the soldiers moving about, some of them still tossing their hats in enthusiasm over the success of the charge. They looked like pygmies, and the sound of their cheers came up to him faint and far away. Farther out from the ridge lay the myriad dots of the Sioux lodges, and beyond them, extending for miles upon miles until lost in the haze of the horizon, stretched the countless rough ranges of hills over which the army had passed in the morning. The treeless expanse of crests and slopes, lying like a tumbled green counterpane in the distance, was now as still and peaceful as if it had never known the turmoil of battle or the trample of armed men.

At length Al retraced his steps and joined Major Camp, whose men were now ready to descend to the main body, with the exception of a strong picket left to hold and patrol the mountain top. Once more back at headquarters, Al was not long in finishing his supper and rolling himself in his blanket. But, though weary with the exertions and excitement through which he had passed since daybreak, he lay for a while thinking over the events of the past nine hours, while one by one the sounds of the camp died away around him, and the soldiers lay down to rest. Most of his thoughts were naturally of his encounter with Te-o-kun-ko and the mystifying conduct of the latter. Why had the Yanktonais failed to shoot him when he lay there between the rocks, utterly helpless? It would have been the most natural thing in the world for an Indian to do, for they seldom show mercy, especially in the heat of battle. Why had that strange, bewildered expression come over the Indian's face when Al called him by name? And, most perplexing of all, where was Tommy now? Among the women and children who had fled away before the army could overtake them, or in some distant, secluded place where Te-o-kun-ko had left him for safe-keeping? All these questions were utterly baffling; no amount of thinking could bring a satisfactory answer to a single one of them; and at length Al, weary in body and mind, sunk into the dreamless slumber which had already enveloped his comrades on every side.

The bugles were blaring out the reveille long before daylight next morning, and in a short time the army had eaten its breakfast, formed in column and was marching away by the left flank along the base of Tahkahokuty, seeking a passage around or through the mountain into the country beyond, whither the enemy had fled. General Sully himself went straight up to the crest by a pathway which had been discovered by Al and others the previous evening, but what he saw there was extremely discouraging. As far as the eye could look to the northward the country was intersected by precipitous hills and steep ravines, some of the latter one hundred feet deep, entirely impracticable for either cavalry or wagons. The army marched for six or seven miles along the foot of the mountain without finding a route by which it could be ascended or turned, and at last the General, bearing in mind that he had rations left for only two more days, reluctantly gave the order to halt and countermarch to the abandoned Sioux camps, in order that these might be destroyed before the army returned to Heart River.

Large detachments from the Second and Eighth Minnesota, the Sixth Iowa, and the Dakota Cavalry were at once detailed as fatigue parties and placed under command of Colonel McLaren to collect and burn the lodge poles and lodge skins, the vast accumulations of dried buffalo meat and dried berries,—food which, though great in quantity, was utterly unfit for white men,—the tanned robes, clothing, cooking utensils, saddles, travois poles, and countless other articles left in the camps and the near-by ravines. Thirteen companies were engaged in the task, and they spent half a day of hard work at it, when, finding that they would be unable to finish by evening, they set the woods and prairie on fire, and burned the remainder of the captured property in one great conflagration. The poles and coverings of between fourteen and sixteen hundred lodges were destroyed, being the camp equipment, so General Sully estimated, of between five and six thousand warriors and their families. If correct, this meant that at Tahkahokuty the Sioux had assembled a greater army than they ever brought together on any other field, before or since.

A little while after noon the troops began their return march, bivouacking that night about six miles from the battlefield, where they were assailed by a body of Indians about dusk, but repulsed the attack easily. Next day they reached Knife River, and on July 31, by a march of thirty-five miles, regained Captain Tripp's camp on the Heart. They found every one there safe and well; but, though no Indians had been seen during the absence of the main column, both the emigrants and the camp guard were exceedingly glad to see the army back again, as it relieved them from their enforced idleness and assured the early renewal of the westward march. While the army was away, Captain Tripp had employed his men in digging a strong line of rifle-pits around the camp, which was now in a condition to withstand the attacks of any number of Indians.

The next two days were spent by the troops in resting themselves and their animals, for all were very weary from the hard marching and fighting of the past week; and by General Sully in trying to determine upon the best route to follow in his further march toward the Yellowstone. Al was absent from headquarters during most of the time, making out commissary requisitions and returns in the wagon train, though once, on the second day, he saw General Sully as the latter passed through the train with Lieutenant Bacon, closely inspecting the contents of each wagon. When, toward evening, he returned to headquarters, he at once asked Wallace Smith, who had been there continuously, what had happened during the day.

"Oh, the General seems to be having a lively time deciding what to do," answered Wallace. "It must be a hard question. He had all the Indian and half-breed scouts in here for hours to-day, questioning them about the routes to the Yellowstone. All of them, excepting one, told him they knew nothing of the country due west of us, which must be terribly rough bad lands, from what they say. They declare they have never ventured into it and advised the General to return to the Cannonball and then move west to the mouth of Powder River and down the Yellowstone to where the boats are to meet us. But that means a long, roundabout march of probably two or three weeks; so the General went and inspected the wagons to see if there were supplies enough to make it."