It was very dark; a pure night enough, but the black stone underfoot swallowed the light of the stars, and at seven o’clock, when at last we halted, only four of our party were with us. We had reached a gentle valley, with a yet damp, soft, sandy bed, full of thorny brushwood, unhappily useless as camel food. We ran about tearing up these bitter bushes by the roots and heaping them in a great pyre, which Auda lit. When the fire grew hot a long black snake wormed slowly out into our group; we must have gathered it, torpid, with the twigs. The flames went shining across the dark flat, a beacon to the heavy camels which had lagged so much today that it was two hours before the last group arrived, the men singing their loudest, partly to encourage themselves and their hungry animals over the ghostly plain, partly so that we might know them friends. We wished their slowness slower, because of our warm fire.