the water-bottle on the pack. The moon rose in the sleeping dusk, but before it was clear of the scalloping ridges of sand the sky became spattered with rags of flying cloud. Presently the wind behind the angry scud began to pick up gusts of sand and flirt them from one crest to another. The travelers rubbed their eyes and coughed as they plowed steadily westward, steering a course by the cart-trail, still discernible, and by the moon behind them. "We're more 'n halfway over," shouted the corporal, "an' it's silly to be dr'amin' of losin' ourselves in this two-by-four desert."
Then the gray sky closed down in blackness everywhere, and leaping billows of sand seemed to meet it. The rush of the terrific wind wiped out the trail as if it had been no more than a finger-mark. There were no more hills nor winding passages among them, only a fog of whirling sand. The wind had an icy edge as it brought the killing cold of Mongolian steppes a thousand miles away. The deserter and the boy covered their faces with their hands, their garments; and al-
