William Le Queux,
Zoraida: A Romance of the Harem and the Great Sahara
“ Within fifty paces of the vanguard I dug my heels into the horse’s sides and bounded across to the head of the convoy of a dozen Spahis. A solitary rider journeying across the desert is such an unusual spectacle that the ferocious-looking advance guard, fearing attack, shouted and lowered their rifles. ”
