As they alternately slid and trotted down the trail, native horsemen could be seen coming and going, their gay blankets sparkling in the clear air. Others on foot were clustered about the central building, where the flag hung droopingly on a tall staff. As they passed the corral, groups of young Tetongs smiled and nudged each other, but offered no greeting. Neither did the older men, though their keen eyes absorbed every detail of the stranger's dress and bearing. It was plain that they held every white man in suspicion, especially if he came attended by a cowboy. Calvin was elaborately free and easy with them all, eager to show his wide acquaintanceship. "Hello, Two Horns; hello, Hawk," he called to a couple of fine-looking men of middle age. They did not reply. "Hello, Gray Wolf, you old sardine; want to try another horse-race?" Gray Wolf, evidently something of a wag, smilingly replied: "You bet. Got new pony--heap fast." Calvin wheeled and spurred into the bunch of young fellows, who scattered with shouts of laughter, while the Captain and Jennie followed Louie, their guide, to the agency gate. They were met at the fence before the office by two men, one a middle-aged man, with a dirty-gray beard and fat, bloated cheeks, who said, blandly: "Good-morning, sir. Good-morning, miss; nice day." Curtis dismounted. "Are you Mr. Sennett?" "I am--what can I do for you?" He turned to his companion, a tall young man, with innocent gray eyes and a loose, weak mouth: "This is my son Clarence. Clarence, take the lady's horse." "Thank you," said the Captain, as he stepped inside the gate. "I am Captain Curtis, of the cavalry, detailed to take charge of this agency. You have just left the office--have you the keys in your pocket? If so, please surrender them to me. It is an unpleasant duty, but I am ordered to assume absolute control at once." The man's red skin faded to a yellow-gray--the color of his beard. For a moment he seemed about to fall, then the blood came surging back; his cheeks grew purple with its weight. "I'll be damned if I submit. It is an outrage!" "You can't afford to make any trouble. I am sorry to do this, but I am under orders of the department to take you unawares, and on no account to let you return to your office." Sennett began to bluster. "Show me your authority." "My authority is in this paper." He drew the order from his pocket. "If you think a moment you will see that instant acquiescence is best." While Sennett stormed, the two chiefs, Elk and Two Horns, drew near, and lifting his hand, Curtis, using the sign language swiftly, said to them: "I am your new agent. The Great Father has heard that the old agent is bad. I am here to straighten matters out. I am Swift Eagle--don't you remember? I came with Bear Robe. I was only second lieutenant then." The faces of the old chiefs lit up with pleasure. "Ay, we remember! We shake your hands. We are glad you have come."