The most renowned robber chiefs in the Sahara during my travels were Chibikee, Fawna (the fugitive Chief of the _Kel-Wai_), Amud, and Alifa; and each was a significant name of outlawry that had power to strike dread in the hearts of the bravest. Of these, Chibikee has died (1920), and Alifa, in 1923, had come to be the most notorious character in the land. [Illustration: A TUAREG MAIDEN OF AÏR; ALMOST WHITE] I have dwelt, to commence with, on this intimate atmosphere in the life of the Tuaregs because it has a powerful influence on the people. Fear of raids, or the doings of raiders, among themselves or of invaders from afar, is the perpetual topic of conversation in camp or with the caravans. All Tuaregs, first and foremost, are consequently ever suspicious of their environment, and this has bred a restless uneasiness that appears to see danger in everything and constant need for stealth and preparedness. This uncertain and harassing state of affairs has had its effect on a war-wise people. The inherited instincts of their Berber forebears remain: there is no growth of cowardice; but the conditions have developed a soldier-native of surpassing cunning and wily intrigue. It is curious, too, how the nature of environment affects them. They are not all the same. Like wild creatures under the blue sky, they reflect the influences about them. The Tuareg who lives under the cover of the remote mountains of Aïr is wild and comparatively timid. He is often like a hunted creature that dreads to venture forth—he is aware of the strength of the rugged glens and caves, and the protection they offer. On the other hand, the Tuareg of the _Ergs_, who of necessity lives in open seas of sand, is bold and daring, and, because of the lack of any place of refuge, takes the risk of raids every day of his adventurous life. As a consequence, he is a force to be reckoned with, and I have little doubt that from among such folk come the chief raiding bands of to-day. Again, take the Tuaregs of the north; of Ahaggar, Ashgur, and the Fezzan, who are all much the same in character. The _Ehaggaran_, like the Tuaregs of Aïr, are largely a mountain-living people; yet they are decidedly bolder. In my opinion, this is explained in that peoples of the northern regions of the Sahara have ever been nearer to the civilisation of Europe, and the subsequent civilisation of the North African coastal regions. In journeys to the bazaars of such places as In-Salah, Ouargla, and Biskra, they have no doubt learned of the ways of a bold-living world, and have taken some of these teachings to heart. Moreover, they have known the moral support of the rifle longer; while they have the example of the Arabs behind them, not vastly distant, to encourage them in strength of a worldly character.