"This killing was done in the summer, and the next spring, when the men were coming in from their trapping they camped somewheres near here in the hills, and stopped two or three days. Before they started on into the Fort, one of the men who was out hunting saw a camp of Indians coming--a small party--and he watched 'em until they camped, and then crawled up close to the lodges. After he'd watched them awhile, he made out that they were 'Rapahoes, and he took the news to camp. The men there turned out, and during the night they got all around the Indians and cached on the hillside among the cedars and rocks. You can think how it must have been that night, the lodges all standing here white in the darkness, and the men lying hid on the hillside waiting for day. At last it began to grow grey in the east, and then light, and pretty soon a smoke began to come from one lodge and then from another, and then a man stepped out, or a woman started down to the creek to get water, or a boy to bring in the horses, and then the first shot came and the people began to run out, and to run this away and that away, but as fast as they came out they were shot down. After all the people were killed, they killed the dogs and horses; everything that there was alive, and then they went away. They never went down into the camp." He paused to relight his pipe, and Jack said: "But how did they know that these were the people who killed the emigrants?" "They didn't," said Hugh, "but they knew that they were 'Rapahoes. That's the way it used to be in them days; if a Piegan or a Sioux, or a Cheyenne killed a white man, his friends killed the next Indian they met of the tribe that had done the killing. The Indians did the same, and many a man has been killed in revenge for something that he had never heard of." "That seems very unfair," said Jack, "I never heard of anything like it before." "Well, it don't seem just right; that's so," said Hugh, "but anyhow, that's the way it used to be in old times. Come on now. Let's go down to where the camp stood." They rode down to the little flat and stopped their horses in the middle of this old camp-ground. Hugh pointed to several spots where there were a few broken, bent and weathered sticks, and said: "You see, the lodges stood wherever you see those lodge poles. If you look in the middle of each of those circles you will find the old ashes of the fire and the stones that were around it. See here!" Dismounting, he walked to one of the circles and picked up two or three pieces of charred wood, which he held up. "That fire once cooked a man's dinner, and look here!" he added, stooping down and feeling in the dirt for something which he released with a hard pull "Here's a knife, a regular old-fashioned bowie-knife; what we used to call an Arkansas toothpick." He knocked the heavy blade against a stone, to free it from the dirt which clung to it, and passed it to Jack.