General Merritt, seeing that he could not now ambush the Indians, ordered the whole regiment to charge upon them. They made a stubborn resistance for a little while, but it was no use for any eight hundred, or even sixteen hundred, Indians to try to check a charge of the gallant old Fifth Cavalry, and they soon came to that conclusion, and began a running retreat toward Red Cloud agency. For thirty-five miles we drove them, pushing them so hard that they were obliged to abandon their loose horses, their camp equipage, and everything else. We drove them into the agency, and followed in ourselves, notwithstanding the possibility of our having to encounter the thousands of Indians at that point. We were uncertain whether or not the agency Indians had determined to follow the example of the Cheyennes and strike out upon the warpath; but that made no difference with the Fifth Cavalry, for they would have fought them all if necessary. It was dark when we rode into the agency, where we found thousands of Indians collected together; but they manifested no disposition to fight. While at the agency I learned the name of the Indian chief whom I had killed that morning; it was Yellow Hand, a son of old Cut Nose, a leading chief of the Cheyennes. Cut Nose having learned that I had killed his son, sent a white interpreter to me with a message to the effect that he would give me four mules if I would turn over to him Yellow Hand's war-bonnet, guns, pistols, ornaments, and other paraphernalia which I had captured. I sent back word to the old gentleman that it would give me pleasure to accommodate him, but I could not do it this time. The next morning we started to join General Crook, who was camped near the foot of Cloud Peak in the Big Horn Mountains, awaiting the arrival of the Fifth Cavalry before proceeding against the Sioux, who were somewhere near the head of the Little Big Horn--as his scouts informed him. We made rapid marches, and reached General Crook's camp on Goose Creek about the 3d of August. At this camp I met many old friends, among whom was Colonel Royal, who had received his promotion to the lieutenant colonelcy of the Third Cavalry. He introduced me to General Crook, whom I had never met before, but of whom I had often heard. He also introduced me to the General's chief guide, Frank Grouard, a half-breed, who had lived six years with Sitting Bull, and knew the country thoroughly. We remained in this camp only one day, and the whole troop pulled out for the Tongue River, leaving our wagons behind, but taking with us a large pack train. We marched down the Tongue River for two days, thence in a westerly direction over to the Rosebud, where we struck the main Indian trail leading down this stream. From the size of the trail, which appeared to be about four days old, we estimated that there must have been in the neighborhood of seven thousand Indians in the war party.