"Ha! it cannot be helped," thought Idris. "The hurricane will also stop the pursuit and when it ceases, we will again proceed southward."
And he began to shout that they should resume their seats on the camels.
But at this moment something happened which entirely changed the situation.
Suddenly, the dusky, almost black, clouds of sand were illumined with a livid light. The darkness then became still deeper, but at the same time there arose, slumbering on high and awakened by the whirlwind, thunder; it began to roll between the Arabian and Libyan deserts,—powerful, threatening, one might say, angry. It seemed as if from the heavens, mountains and rocks were tumbling down. The deafening peal intensified, grew, shook the world, began to roam all over the whole horizon; in places it burst with a force as terrible as if the shattered vault of heaven had fallen upon earth and afterwards it again rolled with a hollow, continual rumble; again it burst forth, again broke, it blinded with lightning, and struck with thunderbolts, descended, rose, and pealed continuously.* [* The author heard in the vicinity of Aden thunder which lasted without intermission for half an hour. See "Letters from Africa.">[
The wind subsided as if overawed, and when after a long time somewhere in the immeasurable distance the chain-bolt of heaven rattled, a deadly stillness followed the thunder.
But after a while in that silence the voice of the guide resounded.
"God is above the whirlwind and the storm. We are saved."
They started. But they were enveloped by a night so impenetrable that though the camels ran close together, the men could not see each other and had to shout aloud every little while in order not to lose one another. From time to time glaring lightning, livid or red, illuminated the sandy expanse, but afterwards fell a darkness so thick as to be almost palpable. Notwithstanding the hope, which the voice of the guide poured into the hearts of the Sudânese, uneasiness did not yet leave them, because they moved blindly, not knowing in truth in which direction they were going;—whether they were moving around in a circle or were returning northward. The animals stumbled against each other every little while and could not run swiftly, and besides they panted strangely, and so loudly that it seemed to the riders that the whole desert panted from fear. Finally fell the first drops of rain, which almost always follows a hurricane, and at the same time the voice of the guide broke out amidst the darkness:
"Khor!"
They were above a ravine. The camels paused at the brink; after which they began to step carefully towards the bottom.