Connor speeds briskly down the slope, and, even as they see him coming, the men lead their horses into line. Captain Terry has one foot in the stirrup as the non-commissioned officer reaches him and his hand goes up in salute.

"Lieutenant McLean's compliments, sir" (the invariable formula in garrison, and not omitted in the field by soldiers as precise as the corporal). "Three or four bucks are galloping over to the river above us to look for our tracks."

"How far above us, corporal?"

"Nigh on to a mile, sir."

"Sergeant Wallace, stay here with the platoon. Mount, you six men on the right, and come after me as quick as you can!" And away goes Captain Terry, full speed up the valley and heading close under the bluffs. In a minute three of the designated troopers are in a bunch at his heels, the other three scattered along the trail. From McLean's post he can see both parties in the gathering light,—the Indians, slowly and cautiously now, beginning the ascent to the bluffs, the captain and his men "speeding it" to get first to the scene. Another moment, and he sees Terry spring from his horse, throw the reins to a trooper, and run crouching up toward the crest; then, on hands and knees, peep cautiously over, removing his hat as he does so. Then he signals "forward" to his men, slides backward a yard or two, runs to his horse, mounts, gallops some four hundred yards farther along the foot of the slope, then turns, rides half-way up, and then he and four of the men leap from their saddles, toss their reins to the two who remain mounted, and, carbine in hand, run nimbly up the bluffs and throw themselves prone upon the turf, almost at the top. Not two hundred yards away from them four Sioux warriors, with trailing war-bonnets and brilliant display of paint and glitter, are "opening out" as they approach, and warily moving toward the summit. One instant more and there is a sudden flash of fire-arms at the crest; five jets of bluish smoke puff out upon the rising breeze; five sputtering reports come sailing down the wind a few seconds later; and, while two of the warriors go whirling off in a wide, sweeping circle, the other two are victims to their own unusual recklessness. One of them, clinging desperately to the high pommel, but reeling in his saddle, urges his willing pony down the slope; the other has plunged forward and lies stone-dead upon the sward. Even at the echo of the carbines, however, popping up from across the ridge a mile away, there come whirling into view a score of red and glittering horsemen, sweeping down in broad, fan-shaped course, at top speed of their racing ponies, yelling like mad, and lashing their nimble steeds to the rescue. Two minutes of that gait, and the captain and his little squad will be surrounded.

"Mount! mount!" shouts McLean, as he turns and rushes down the slope, followed by his picket-guard. "Lively now, sergeant. Run to the captain. Don't wait for me!"

"Come on, all you fellers!" is Sergeant Wallace's characteristic rallying cry; and away goes the little troop, like a flock of quail. McLean is in the saddle in an instant, and full tilt in pursuit.

Not a moment too soon! Even before the leading troopers have reached the two "horse-holders" under the bluffs, both above and below the captain's position, the plumed and painted warriors have flashed up on the ridge and taken him in flank. Without the prompt aid of his men he would be surrounded in the twinkling of an eye. Already these daring flankers have opened fire on the knot of horsemen, when McLean shouts to some of the rearmost to follow him, and veering to the left he rides straight at the Indians who have appeared nearest him along the bluffs. Two of the troopers follow unhesitatingly; others sheer off toward their main body. There's too much risk in darting right into the teeth of a pack of mounted Sioux, even to follow an officer. Wary and watchful the Indians mark his coming. Circling out to right and left they propose to let him in, then follow their old tactics of a surround. He never heeds their manœuvres; his aim is to get to close quarters with any one of them and fight it out, as Highland chieftains fought in the old, old days of target and claymore. He never heeds the whistle of the bullets past his ears as one after another the nearest Indians take hurried shots at him. Straight as a dart he flies at a tall savage who pops up on the ridge in front of him. The long Springfield is slung now, and he grasps the gleaming revolver in his hand. Twice the Indian fires, the lever of his Henry rifle working like mad, but the bullets whiz harmlessly by; then, with no time to reload, and dreading the coming shock, he ducks quickly over his nimble piebald's neck and strives to lash him out of the way, just as the young officer from some other hand

Receives but recks not of a wound,

and then troop-horse, pony, soldier, and savage are rolling in a confused heap upon the turf. The Indian is the first on his feet and limping away; no redskin willingly faces white man "steel to steel." McLean staggers painfully to his knees, brushes dust and clods from his blinded eyes with one quick dash of his sleeve, and draws a bead on his red antagonist just as the latter turns to aim; there is a sudden flash and report, and the Sioux throws up his hands with one yell and tumbles headlong. Then a mist seems rising before the young soldier's eyes, the earth begins to reel and swim and whirl, and then all grows dark, and he, too, is prostrate on the sward.