They rolled about, to be heaped in corners by the skirling winds. It was perhaps by them, as much as by his unrivalled road-sense, that Auda knew the way. For us, the rock shapes were constant speculation and astonishment; their granular surfaces and red colour and the curved chiselling of the sandblast upon them softened the sunlight, to give our streaming eyes relief.

In the mid-march we perceived five or six riders coming from the railway. I was in front with Auda, and we had that delicious thrill: “Friend or enemy?” of meeting strangers in the desert, whilst we circumspectly drew across to the vantage side which kept the rifle-arm free for a snap shot; but when they came nearer we saw they were of the Arab forces. The first, riding loosely on a hulking camel, with the unwieldy Manchester-made timber saddle of the British Camel Corps, was a fair-haired, shaggy-bearded Englishman in tattered uniform. This we guessed must be Hornby, Newcombe’s pupil, the wild engineer who vied with him in smashing the railway. After we had exchanged greetings, on this our first meeting, he told me that Newcombe had lately gone to Wejh to talk over his difficulties with Feisal and make fresh plans to meet them.