Read it through once

Thornton stood between him and Buck, and evinced no intention of getting out of the way. Hal drew his long hunting-knife. Mercedes screamed, cried, laughed, and manifested the chaotic abandonment of hysteria. Thornton rapped Hal’s knuckles with the axe-handle, knocking the knife to the ground. He rapped his knuckles again as he tried to pick it up. Then he stooped, picked it up himself, and with two strokes cut Buck’s traces.