Son of the White Wolf by Robert E. Howard

THE SUN WAS not long risen over the saw-edged mountains to the east, but already the heat was glazing the cloudless sky to the hue of white-hot steel. Along the dim road that split the immensity of the desert a single shape moved. The shape grew out of the heat-hazes of the south and resolved itself into a man on a camel.

The man was no Arab. His boots and khakis, as well as the rifle-butt jutting from beneath his knee, spoke of the West. But with his dark face and hard frame he did not look out of place, even in that fierce land. He was Francis Xavier Gordon, El Borak, whom men loved, feared or hated, according to their political complexion, from the Golden Horn to the headwaters of the Ganges.