"The nearer we came the stronger this impression grew, and as the hills rose at last clear above the bush they seemed to communicate their own atmosphere to us all. The highest could not have been more than a thousand feet. But they rose sheer out of the flat plain and were from the base up made entirely of stone, and this alone, in a world of deep sand, gave hem a sense of mystery."
Laurens Van Der Post, The lost world of the Kalahari