Stas' curiosity was so aroused that he forgot that he had determined not to speak to Idris any more and asked:
"Sands? What does it mean?"
"It happens thus, and means that for a long time there will be no rain. But the heat will not distress us, since as far as Assuan we will ride only during the night."
And no more could be learned from him. Stas and Nell listened long to these peculiar sounds which continued until the sun descended in the west, after which night fell and the caravan started on its further journey.
XIII
In the daytime they hid in places concealed and difficult of access, amid rocks and chasms, and during the night they hurried, without respite, until they passed the First Cataract. When finally the Bedouins discerned from the situation and form of the khors that Assuan was behind them, a great burden fell off Idris' breast. As they suffered already from want of water they drew nearer to the river a half day's distance. There Idris, concealing the caravan, sent all the camels with the Bedouins to the Nile in order to water them well and for a longer time. Beyond Assuan the fertile belt along the river was narrower. In some places the desert reached the river; the villages lay at a considerable distance from each other. The Bedouins, therefore, returned successfully, unseen by any one, with a considerable supply of water. It was necessary now to think of provisions. As the animals had been fed sparingly during the past week they grew lean; their necks lengthened, their humps sank, and their legs became weak. The durra and the supplies for the people, with the greatest stint, would suffice for two days more. Idris thought, however, that they might, if not during daytime then at night, approach the pastures on the river banks and perhaps buy biscuits and dates in some village. Saba already was given nothing at all to eat or drink, and the children hid leavings of food for him, but he somehow managed to take care of himself and came running to the stopping places with bleeding jaws and marks of bites on his neck and breast. Whether the victim of these fights was a jackal, or a hyena, or perhaps a desert fox or a gazelle no one knew; it was enough that there were no signs of great hunger on him. At times also his black lips were moist as if he drank. The Bedouins surmised that he must have dug deep holes at the bottom of the ravines, and in this manner reached water which he scented under the ground. In this manner travelers who get lost dig the bottoms of chasms and, if they do not often find water, they almost always reach damp sand and, sucking it, cheat in this way the pangs of thirst. In Saba, however, considerable changes took place. He still had a powerful breast and neck, but his sides were sunken, through which he appeared taller. In his eyes, about the reddened whites, there was now something savage and threatening. To Nell and to Stas he was as attached as previously and permitted them to do with him whatever they pleased. He still at times wagged his tail at Chamis, but he growled at the Bedouins and Sudânese or snapped with his terrible teeth, which at such times clashed against each other like steel nails. Idris and Gebhr plainly began to fear and hate him to the extent that they would have killed him with the captured rifle, were it not that they desired to bring this extraordinary animal to Smain, and were it not also that they had already passed Assuan.
They had passed Assuan! Stas thought of this continually, and doubt that the pursuit would ever overtake them stole gradually into his soul. He knew, indeed, that not only Egypt proper, which ends at Wâdi Haifa, that is, at the Second Cataract, but the whole of Nubia was up to that time in the hands of the Egyptian Government, but he also understood that beyond Assuan and particularly Wâdi Haifa the pursuit would be more difficult and the commands of the Government would be executed carelessly. His only hope was that his father with Mr. Rawlinson, after making arrangements for the pursuit from Fayûm, would go to Wâdi Haifa by steamer, and there securing troops of the camel-corps, would endeavor to intercept the caravan from the south. The boy reasoned that if he were in their place he would do just this, and for that reason he assumed that his supposition was very probable.
He did not, however, abandon the thought of a rescue on his own account. The Sudânese wanted to have powder for the captured rifle and with this object decided to disjoin a score of the rifle cartridges, so he told them that he alone was able to do that, and that if any one of them should undertake the task unskilfully, the cartridge would explode in his fingers and tear off his hands. Idris, fearing English inventions and unknown things generally, determined finally to entrust the boy with this undertaking. Stas went at it willingly, hoping in the first place that the powerful English powder at the first shot would burst the old Arabian rifle to pieces, and, again, that he might be able to hide a few cartridges. In fact, he succeeded more easily than he expected. Apparently they watched him at the work, but the Arabs began at once to talk among themselves and soon they were more occupied with their conversation than with their supervision. Finally this loquacity and inbred carelessness permitted Stas to conceal in his bosom seven cartridges. Now all that was necessary was to secure the rifle.
The boy judged that beyond Wâdi Haifa, the Second Cataract, this would not be a very difficult matter as he foresaw that as they drew nearer to their destination the Arabs' vigilance would relax. The thought that he would have to kill the Sudânese, the Bedouins, and even Chamis, always caused him to shudder, but after the murder which the Bedouins had committed, he did not have any scruples. He said to himself that the defense, liberty, and life of Nell were involved, and in view of this the lives of his adversaries did not deserve any consideration, especially if they did not surrender and it came to a fight.
But he was anxious about the short rifle. Stas resolved to secure it by stratagem, whenever the opportunity presented itself, and not to wait until they reached Wâdi Haifa, but perform the deed as soon as possible.