"Then what do you think I had better do, General Sully?" inquired Al.

His commander meditated a moment. "Well, my boy," he began, "I am not anxious that you should leave me; I have enjoyed having you with us through this expedition, and I don't exaggerate when I say that you have made yourself as useful as any of my regular staff officers, and have been as courageous in conduct and as uncomplaining under hardships as any soldier could be,—probably more courageous than necessary, though that is never a condemnable fault. But my judgment is that, since you are in this country primarily to find your brother, your proper course will be to get to Fort La Framboise as soon as possible. When we reach the Yellowstone you will probably be able to go on ahead of the army to Fort Union, on the Missouri, where, no doubt, you can soon catch a boat downward bound from Fort Benton which will take you to Fort La Framboise in a few days."

Al was deeply gratified by his commander's words of praise, the more so since General Sully was not a man given to flattery nor to the bestowal of undue praise upon his subordinates. He very much disliked the idea of leaving the army and his many friends in it before the conclusion of the campaign, but he felt that the General was right. Indeed, it had been his opinion ever since his conversation with Te-o-kun-ko that he ought to get to Fort La Framboise as soon as he could, but he had also felt that he owed it to General Sully to await the latter's opinion and be governed by it, and he was glad to find that this opinion agreed with his own.

As the army advanced westward, the country became more sterile rather than less so. It was evident that there had been no rain in this region for a long time and whatever grass had ever grown there had, moreover, been eaten off right down to the roots by a plague of grasshoppers. These insects, moving across the country in vast multitudes, often caused widespread devastation all over the West in early days, and many a pioneer farmer saw his entire crop of corn, small grain, and vegetables utterly destroyed in a single day by the ravenous pests while he stood by, helpless to protect or save the fruits of his year of hard work. In the case of the Northwestern Indian Expedition, the visitation of the grasshoppers, together with lack of water, entailed untold suffering upon the thousands of animals with the column. Hardly any corn or grain was left; and the poor beasts, enfeebled by their weeks of hard, hot marching, generally with insufficient food and water, were becoming mere skeletons, hardly able to keep moving.

The night of August 9, which had witnessed the end of the battle of the Little Missouri, as the fight in the Bad Lands came to be called, found the army camping beside the bed of a dry creek; and each man lay down to sleep after a supper consisting of one cracker and a bit of bacon, with nothing to drink, while the horses had neither food nor water. The two following days were more like nightmares than realities. Most of the mules and oxen of the two wagon trains contrived to stagger along somehow. But one by one the worn-out cavalry horses began to succumb. When they could keep up no longer, their riders would shoot them to end their sufferings; and all along the dreary miles of white, dusty alkali plains, sprinkled here and there with sparse growths of sage brush or cactus, the wake of the army was dotted with the bodies of scores of the poor, dumb victims of starvation and thirst. By this time nearly all the men were walking and leading their horses, in order to save the latter as much as possible. So passed the first heart-sickening day after the close of the Indian attacks; and as darkness fell at the end of a torturing march of thirty-two miles, the troops sunk down upon the brink of a lake of clear, sparkling water, so bitter with alkali that neither man nor beast could do more than taste it and then feast his aching eyes on its delusive, poisonous beauty. The victorious army, which had conquered all its human foes, seemed like to perish miserably under the rigors of inhospitable Nature.

Despite his own sufferings, Al had one satisfaction, which was that Cottontail kept up much better than most of the horses of the expedition. The fact that he was a tough, sturdy little animal by nature had something to do with his good condition; yet Al knew that the care he had given the horse throughout the campaign had been chiefly responsible for bringing him into the present crisis in a state to withstand its hardships; for he had never failed to supply Cottontail with water and grass whenever opportunity offered, even at the cost of his own rest or comfort. Yet even Cottontail had become so desperate with thirst by the second night of the desert march that he pawed and neighed and stamped the whole night through. As every other animal was doing the same thing, the camp was in an uproar of misery, and few of the men could sleep for sympathy with their suffering four-footed comrades.

Dawn came at last, after hours of darkness which seemed long as eternity, and the suffering caravan crept on. The guides had assured General Sully that he could reach the Yellowstone that day, and about four o'clock in the afternoon the advance guard suddenly broke into confusion, and those behind them saw the men toss their hats in the air, while the sound of cheers and carbine shots came back to their ears. The Yellowstone was in sight, though still several miles off, and across the wide, flat valley could be seen the groves of green cottonwoods along its banks with the strong, swift current of the river beyond, shining bright and beckoning in the sunlight. With an inrush of new vitality the whole column surged forward, and the drivers of the mule teams were hardly able to restrain the poor animals as they struggled to run forward into the stream. The General and his officers, declining, as they always did, to accept any advantage over the men afforded by their position, held back their own horses and allowed the trains and the troops to reach the river first. Al, mounting Cottontail for the first time in two days, rode back to the ambulance in which Wallace lay, and secured his canteen, as well as those of the driver and of two other wounded men who were riding with him. Hurrying, then, to the river he threw Cottontail's reins over his head and left him to drink, filled the canteens, and ran back to meet the ambulance. Then, after Wallace had drunk, he took from the latter's canteen his own first deep swallow of the cool, life-restoring water.

There was no more marching for that day. Men and animals had indulged too freely in the luxury of water to be fit for any more immediate exertion. The army went into camp and every one took a bath, for the first time in weeks, and washed out his clothing, soiled and stiffened with perspiration and dirt. But the arrival at the river had not relieved the situation with regard to forage, for the grasshoppers had cleaned off the grass right up to the banks of the Yellowstone. The soldiers, however, went in crowds into the cottonwood groves where they cut armfuls of branches and leaves and brought to their horses, who ate ravenously of these not unpalatable substitutes for grass. The expected steamboats were not in sight, but the cannon soon began to boom at intervals, signalling the army's arrival to the steamers, if the latter were anywhere near.

And then, just before sunset, a heavy column of smoke appeared, rising above the tree tops up river. It could come from nothing but steamboats.

"They evidently expected us to strike the river farther up," said General Sully, as he and a number of other officers assembled on the bank, anxiously watching the bend above for the first sight of the boats. "It's fortunate they were within sound of the guns or I should have had to send scouts to look for them."