"Is it true," he asked, "that the government means to establish a post at Warrior Gap? Is it true that Major Burleigh has gone thither?" And when told that it was and that only Captain Brooks's troop had gone as escort, Folsom's agitation was extreme. "Colonel," said he, to the post commander, "solemnly I have tried to warn the general of the danger of that move. I have told him that all the northern tribes are leaguing now, that they have determined to keep to themselves the Big Horn country and the valleys to the north. It will take five thousand men to hold those three posts against the Sioux, and you've barely got five hundred. I warn you that any attempt to start another post up there will bring Red Cloud and all his people to the spot. Their scouts are watching like hawks even now. Iron Spear came to me at my son's ranch last night and told me not ten warriors were left at the reservation. They are all gone, and the war dances are on in every valley from the Black Hills to the Powder. For heaven's sake send half your garrison up to Reno after Brooks. You are safe here. They won't molest you south of the Platte, at least not now. All they ask is that you build no more forts in the Big Horn." But the colonel could not act without authority. Telegraph there was none then. What Folsom said was of sufficient importance to warrant his hurrying off a courier to Laramie, fully one hundred miles southeast, and ordering a troop to scout across the wild wastes to the north, while Folsom himself, unable to master his anxiety, decided to accompany the command sent out toward Cantonment Reno. He long had had influence with the Ogallallas. Even now Red Cloud might listen if he could but find him. The matter was of such urgency he could not refrain. And so with the gray troop of the cavalry, setting forth within an hour of his coming, rode the old trader whom the Indians had so long sworn by, and he started none too soon.