Danvers joined in with right good-will. Occasionally he danced; more often he sat on the long trade counter and kept time to the emphatic music by beating his spurs heavily against the boards behind his feet. Latimer and O'Dwyer danced joyously; but Burroughs, apparently uneasy, as the evening wore on, kept a watchful eye on the outer door. Philip noticed, too, that Pine Coulee was less phlegmatic than usual, although she danced faithfully at the command of her lord and master. Presently Me-Casto came in and stood by the door. With blanket muffling the lower part of his face, he looked piercingly at Pine Coulee--at Robert Burroughs. The trader caught Me-Casto's eye, and, ostentatiously clasping Pine Coulee's hand as he swung her in the dance, he smiled full in the Blackfoot's face, purposely flaunting his ownership of the squaw. Me-Casto turned and left the room. "'On wid the dance, let j'y be unconfined!'" yelled O'Dwyer, as he combined an Irish jig and a Red River reel. He had not noticed Me-Casto, but Latimer and Danvers exchanged glances. Just then Pine Coulee looked wistfully toward the opening door. Burroughs, ever watchful, caught a glimpse of Me-Casto as his lips gave an almost imperceptible signal to Pine Coulee. The trader's anger was quick; his discretion slight. He struck the girl flat on the cheek. "Take that!" he said savagely. "I'll teach yeh to hanker after that lousy buck!" The words and the blow were simultaneous. So was the leap of the indignant Danvers. "You coward!" he cried, "to strike a woman!" He took the trader by the nape of the neck and shook him soundly. Before Burroughs could close with the trooper there came three rifle shots. Each time a singing bullet whizzed by a dodging form. Only one of the shots took effect. Pine Coulee sank to the floor, blood flowing from her bosom. Screams, oaths and shouts mingled as Danvers raised the squaw. Latimer assisted him in placing her on a counter, while Burroughs, certain of the would-be murderer, ran outside for the assailant, the crowd following. A head pushed past the half-opened side door. "Didn't I kill Burroughs?" The question was in Blackfoot. "You shot Pine Coulee!" replied Danvers, sternly. In an instant renewed shouting indicated that the men had tracked the Indian. A moment later the sound of fleeing hoofs told that Me-Casto had made a get-away. The trot of other horses followed, but soon the eternal silence of the prairie reigned alone. By the time Burroughs returned to the store Pine Coulee had revived. As the trader was dragging the squaw to his near-by house, he paused on the threshold.