Next day we left Abu Raga near mid-afternoon, not sorry, for this beautiful place had been unhealthy for us and fever had bothered us during our three days in its confined bed. Auda led us up a tributary valley which soon widened into the plain of the Shegg⁠—a sand flat. About it, in scattered confusion, sat small islands and pinnacles of red sandstone, grouped like seracs, wind-eroded at the bases till they looked very fit to fall and block the road; which wound in and out between them, through narrows seeming to give no passage, but always opening into another bay of blind alleys. Through this maze Auda led unhesitatingly; digging along on his camel, elbows out, hands poised swaying in the air by his shoulders.

There were no footmarks on the ground, for each wind swept like a great brush over the sand surface, stippling the traces of the last travellers till the surface was again a pattern of innumerable tiny virgin waves. Only the dried camel droppings, which were lighter than the sand and rounded like walnuts, escaped over its ripples.