Far below me a yellow haze hid the desert to the east. Yet it was there that my fancies ranged, planning new journeys while I wondered at this strange compulsion which drove me back to a life that was barely possible. It would, I felt, have been understandable if I had been working in some London office, dreaming of freedom and adventure; but here, surely, I had all that I could possibly desire on much easier terms. But I knew instinctively that it was the very hardness of life in the desert which drew me back there – it was the same pull which takes men back to the polar ice, to high mountains, and to the sea.