When the soldiers moved out of the valley, leaving so many graves behind them, the wolves rushed out from canon, ravine and den, to dig up the fresh earth and mutilate the dead. The shadow was there--a solitary, mysterious and vigilant sentinel to guard those sacred mounds. It screamed and gestured at the fierce beasts, it fired upon them with rifle and revolver and struck them with bright, keen sabre. The wolves ran here and there, from grave to grave, gnashing their teeth in anger, but the shadow closely pursued them. They formed in groups in the midnight darkness and waited for the shadow to tire out and fall asleep or go away, but it paced up and down over the graves, vigilant and unwearied, and daylight came to hurry the wild beasts to their lairs till another night. [Illustration: Gathering Up the Dead at Wounded Knee (page 37).] Hunters and scouts had seen the sentinel-beat among the graves in the light of noon-day, when men could not be mistaken. The path ran from grave to grave, winding about to take in every one, and then it ran to the river and disappeared in a ledge of rocks. Scouts said it was a path beaten by human feet. The Indians said that a shadow or spirit alone could remain in that lonely spot, having only the company of wild beasts and the graves of the lonely dead. Once when Red Cloud and a trusty few were scouting to learn the whereabouts of their white foes, they encamped in the valley for the night. The shadow stole among them as they slept, and when the fierce scream aroused the band from their slumbers, five of the red men had been murdered, each throat slashed across with a keen blade. The shadow stood and jeered at the living, who huddled together like frightened children. When they fled for their lives it pursued them with drawn saber, and one of them had a scar on his shoulder to prove he had been struck with a blade. Next day when a full band of Indians rode into the valley to solve the mystery and secure revenge, they saw no living thing. The bodies of the dead warriors were cut and hacked and gashed. Five of the poor cavalrymen whose brains had been beaten out had been revenged. Before the crown of a single grave had sunk down, Crazy Horse started to cross the valley at midnight with his lodges. The shadow confronted his band and mocked them, and as the red men hurried along in the darkness, vividly recalling the mad charge of the cavalry, the strange shadow skulked along with the column and fired shot after shot into the band. They fired at it and rushed out to capture it, but it disappeared, as shadows do. Two squaws, a child or two, an old man and two warriors fell by the bullets which the shadow fired. From that time the red men avoided the valley as white men avoid a pest. They would not cross it or skirt it, even at high noon when the sunshine beat down upon the graves.