“There’s something moving away there on the bluff, Dave,” said Winthrop, suddenly, shading his eyes.

“D’you say so, Colonel?” answered the cowboy, who with his employer and mate was riding some little way ahead of the train. “Likely enough it’s Smokestack Bill coming back. He started off in that direction before daybreak to hunt.”

They were skirting a range of low round-topped bluffs, on one of which had appeared the object which attracted Winthrop’s attention.

“It’s gone now,” said the latter, still gazing intently. “I could have sworn it was somebody’s head.”

“Oh, thunder! Look!” said the cowboy, quickly reining in his horse with a jerk.

Well might even his stout heart—the heart of every soul in that company—die away. For the crest of the bluff was by magic alive with mounted figures. A great sheet of flame burst forth, and amid the deafening crash of the volley a storm of leaden missiles whizzed and hummed around the ears of the party. Oregon Dave had uttered his last words. He threw up his arms with a stiffening jerk, and toppled heavily from his saddle.

Then followed a scene of indescribable terror and confusion. Rending the air with their shrill, vibrating war-whoop, a vast crowd of painted horsemen swooped down in full charge upon the doomed and demoralised whites. Flinging themselves behind their trained steeds, the Sioux delivered their fire with deadly effect, then, recovering themselves in the saddle with cat-like agility, they rode in among their writhing, shrieking victims, spearing and tomahawking right and left. Perfectly mad with terror, the draught animals stampeded. Waggons were overturned, and their inmates flung screaming to the ground, or crushed and mangled beneath the wreckage.

The surprise was complete; the demoralisation perfect. Utterly panic-stricken, helpless with dismay, men allowed themselves to be cut down without offering a shadow of resistance. Apart from the terror inspired by the suddenness of the onslaught, there was literally not a minute of time wherein to mass together and strike a blow in defence. Even the privilege of selling their lives dearly was denied these doomed ones.

The waggon train, pulled out at its full length, offered an easy prey, and along this line, after the first and fatal charge, the warriors, breaking up into groups, urged their fleet ponies; shooting down the wretched emigrants with their revolvers, and ruthlessly spearing such few who, being wounded, instinctively tried to crawl away. Whooping, yelling, whistling, brandishing their weapons, they strove to increase the terror of the maddened teams, who, unable to break loose, upset the vehicles wholesale. They goaded the frenzied animals with their lance-points, laughing like fiends if the wheels passed over the bodies of any of the inmates thrown out or trying to escape; and once when a whole family, driven wild with terror, instinctively flung themselves from the creaking, swaying vehicle, which, upsetting at that moment, crushed mother and children alike in a horrible mangled heap beneath the splintering wreckage, the glee of the savages knew no bounds.

It was all over in a moment. Not a man was left standing—not a man with power in him to strike another blow. All had been slain or were lying wounded unto death. All? Stay! All save one.