Another day's march led us along the shore of a long lake with bare banks. We encamped at its southern extremity and rested a day, for here nothing could be seen towards the south and west but yellow sand. The guide asserted that it was four days' journey eastwards to the river Khotan-darya, and this statement agreed approximately with existing maps, but I took the precaution of ordering the men to take water for ten days.
On April 23 we left the last bay of the last lake to plunge into the high sand. All vegetation came to an end, and only in some hollow a solitary tamarisk was still to be seen. The sandhills became ever higher, rising to as much as 100 feet.
The next day we marched on in a violent storm. The sand swept down in clouds from the crests of the dunes, penetrating into our mouths, noses, and eyes. Islam Bay led our train and looked for the easiest way for the camels. We noticed, however, that they were already beginning to get tired. Sometimes they fell in the sand, and their loads had to be taken off before they could get up again. When the tent was set up we had made only eight miles. Now there was not a sign of life, not a moth fluttered round my candle, not a wind-borne leaf was seen in the boundless yellow sand.
On the morning of the 25th I made a terrible discovery: two cisterns were empty and the other two contained only enough water for two days. Henceforth Islam Bay was put in charge of the cisterns. The water was treasured like gold and served out in driblets.
I travelled on foot to spare my riding camel and encourage the men. The caravan moved more slowly through the murderous sands. One camel, called Old Man, lagged behind. We waited an hour, and gave him a mouthful of water and a handful of hay from his own pack-saddle. When we went on, he was led slowly after us by Muhamed Shah.
With Islam I measured out the last drops of water on the night of the 26th. There were about two small cups daily for each of us for three days. The next day we plunged again into terrible sand, the dunes being 200 feet high. In the evening we saw dense rain-clouds in the west, and hoped that Heaven would have compassion on us. The clouds spread out and came still nearer. All our vessels were made ready, and the tent was stretched on the ground to collect the sweet water which was to save us. We waited in vain, for the clouds dispersed and yielded us not a drop.
The two tired-out camels had been abandoned at the beginning of the day, and we had thrown away a stove, a carpet, my tent-bed, and two empty water cisterns.
On April 28 we were awakened by a north-easterly storm, one of those "black storms" which stir up the drift-sand in dense clouds and turn day into night. All the camp was buried in sand. Only the nearest camels could be seen, and their track was immediately obliterated. We had to keep all together lest we should lose one another. It was quite possible to lose the caravan at a distance of a few paces, and that meant death. We were almost suffocated by the volumes of sand which whirled about us, and had to rest frequently to get our breath. The camels lay down with their heads to leeward, and we thrust our faces under them that we might not be choked with sand.
Then we went on with faltering steps. A camel fell and I sent two men after him. They came back directly, saying that the track was smoothed out by the wind and that they dared not lose sight of us. That was the third victim. At the evening camp everything not absolutely indispensable was sorted out to be left behind, and a stick was set up on the nearest dune with a newspaper wrapped round it so that we might find the place again if we obtained water soon. There was still a little water left in the two cans, but next morning Islam came and told me that one of them was empty. There can be little doubt that the guide was the thief who had robbed us all. With failing steps we struggled on all day among the high sand dunes.
On the morning of the 30th there was less than two-thirds of a pint of water left in the last can. While the others were engaged in loading the camels, Islam surprised the guide as he stood with the can to his mouth. Islam fell upon him furiously, threw him to the ground, and would have killed him if I had not come up in time. Only one-third of a pint was now left. At mid-day I moistened the men's lips with the corner of a handkerchief dipped in water. In the evening the last drops were to be distributed, but when the time came the can was found to be absolutely empty. Kasim and Muhamed, who led the camels, had drunk it all.