The Veiled Man by William le Queux

Throughout our breathless land of sun and silence there is a well-known adage that the word of a Veiled Man is like water poured upon sand which, when once dropped, is never to be recovered. I am, alas, compelled to admit that there is much truth in this; nevertheless, to every rule there is an exception, and in every tribe of the Touaregs, from those of the Tidikelt to those of the Adrar, are to be found men who are not thieves or evil-doers, even though they may be marauders.

Those acquainted with the progress of recent events in Algeria will remember that when our brothers, the Kabyles, rose against our now masters, the French, and committed the terrible massacres at Al-Setit, news was promptly circulated over every one of the vast Saharan plains that the forces of Al-Islam had, at last, risen against the infidels. Eager for the fray, most of the desert tribes, among them the Touaregs of the Benin Sissin, Haratin, and Kel-Owi, or "People of the Light," united against the Roumis. Hence, we of the Azjar pressed northward in force in order to unite with the warlike Beni-Mzab in a formidable attack upon the French posts at Gardaia and Wargla, south of the great Atlas range.