Few adventures were met with; but one whole day the travellers were annoyed by a strong east wind, and the next day the wind and drifting sand were so violent that they were compelled to keep their tents. They had to sit in their shirts, as the sand could thus be shaken off as soon as it made a lodgment, which with any other articles of dress could not be done. Denham found the greatest relief by rubbing the neck and shoulders with oil, and being shampooed by his servant, Barca's wife, who, when a slave in the palace of the pacha, had learned the art. The Tibboos, a tribe who had for some time accompanied them, went off to obtain some sheep, an ox, honey, milk and fat. On their return the milk turned out sour camels' milk, full of sand, and the fat very rancid, while a single lean sheep was purchased for two dollars. Some of their horses were very handsome and extremely fat, which arose from being fed entirely on camels' milk, corn being too scarce for the Tibboos to spare them. The girls of this tribe were pretty, but the men extremely ugly. Their Arabs, who were sent as an escort to oppose banditti, after a time became dissatisfied at having nothing to do, and were evidently contemplating inroads on the inhabitants. Denham, with Boo-Khaloum and a dozen horsemen, each having a footman behind him, started off towards a spot where some Tibboo tents had been seen. On their arrival they found that the shepherds had moved off, knowing well how they should be treated by the white people, as they called the Arabs. Their caution was made the excuse for plundering them. "What! not stay to sell their sheep? the rogues!" exclaimed the Arabs. After a time they came in sight of two hundred head of cattle and about twenty persons--men, women and children--with camels, moving off. The Arabs, slipping from behind their leaders, with a shout, rushed down the hill, part running towards the cattle to prevent their escape. The unfortunate people were rapidly plundered, the camels were brought to the ground and the whole of their loads rifled. The poor women and girls lifted up their hands, stripped as they were to the skin, but Denham felt that he could do nothing for them beyond saving their lives. When Boo-Khaloum came up, however, he seemed ashamed of the paltry booty his followers had obtained, and Denham seized the favourable moment to advise that the Arabs should give everything back, and have a few sheep and an ox for a feast. He gave the order, and the property was restored, with the exception of ten sheep and a fat bullock. An old _maraboot_ assured Denham that to plunder those who left their tents, instead of supplying travellers, was quite lawful. Too often the natives are not only plundered, but murdered, by the armed attendants of caravans as they make their way across the desert.