"It was certainly very kind of you to think of me, Al," said Wallace, "and I appreciate it." "Perhaps you won't feel so grateful after a while," returned Al, with a laugh. "It may be that when we strike the Indians you will have to get into some dangerous places in carrying orders." "That's all right; so much the better chance for promotion," declared Wallace, lightly. "Besides, I'm sure that service at headquarters must be much more interesting and pleasant than it is in the ranks, where one has to march all day in one place, and sleep and eat and wash and brush his teeth and almost breathe, by word of command." "Yes, I think you will find it more pleasant in that way," agreed Al. "All you need do is to keep up a neat and soldierly appearance, always be on hand in case you should be wanted, and always obey orders promptly and thoroughly." The army was now entering regions where it might expect to encounter Indians in heavy force at any time, and General Sully was taking all necessary measures to guard his forces against surprise and also to reconnoitre the country thoroughly for signs of the red foe. The company of Winnebago Indian scouts from Nebraska, and the friendly Sioux employed by General Sully, were constantly spread out far in front and on the flanks of the column, scouring the ravines and hills and clumps of timber, while a heavy advance guard preceded the main body on the march. Every night the wagon train was corralled, with its mules herded in the centre. An escort of four hundred men was detailed to remain always with the Montana emigrant train; for the latter, though it usually marched close behind the army, sometimes met with delays because its wagons were very heavily loaded. Major Brown's company of Indian scouts from Minnesota had remained at Fort Rice, under orders to return as speedily as possible to Fort Wadsworth; so that General Sully had none too many scouts with him to properly cover his advance. One afternoon, camp was made for the night on a level plateau covered with fine grass not far from the bank of the Cannonball and overlooking the lower valley of that stream. Several small buttes, with steep sides and round tops, rose abruptly from the valley close to the river, and between them glimpses could be caught from the camp of the narrow stream beyond, its waters sparkling in the late afternoon sunshine. After a hot day's march the river looked very inviting, and Lieutenant Dale proposed to Al that they go down and take a swim, which would also give them a chance to examine more closely the river and the curious rock formations along its banks. Al readily agreed and also obtained permission from the General for Wallace to accompany them.