After dark we crawled for three hours, reaching the top of a sand-ridge. There we slept thankfully, after a bad day of burning wind, dust blizzards, and drifting sand which stung our inflamed faces, and at times, in the greater gusts, wrapped the sight of our road from us and drove our complaining camels up and down. But Auda was anxious about the morrow, for another hot headwind would delay us a third day in the desert, and we had no water left: so he called us early in the night, and we marched down into the plain of the Biseita (so called in derision, for its huge size and flatness), before day broke. Its fine surface-litter of sun-browned flints was restfully dark after sunrise for our streaming eyes, but hot and hard going for our camels, some of which were already limping with sore feet.