Whose that author....obscure clue division

“He stalked into the room, leaned his long rifle against the mantelpiece and spread out his hands to the fire. He was clad from head to foot in fringed and beaded buckskin, which showed evidence of a long and arduous tramp. It was torn and wet and covered with mud. He was a magnificently made man, six feet in height, and stood straight as an arrow. His wide shoulders, and his muscular, though not heavy, limbs denoted wonderful strength and activity. His long hair, black as a raven's wing, hung far down his shoulders. Presently he turned and the light shone on a remarkable face. So calm and cold and stern it was that it seemed chiseled out of marble. The most striking features were its unusual pallor, and the eyes, which were coal black, and piercing as the dagger's point.”