In 1947, Wilfred Thesiger was making his second crossing of the Rub’ al-Khali, the desolate Empty Quarter of Arabia that he described as “a desert within a desert”. When he reached the area of Jilida, in the south-west corner of Saudi Arabia, not far from the borders of Yemen, from where raiding parties of Dahm tribesmen regularly ventured east, tribesmen who would certainly have killed “the Christian” if they had come across him, he stopped and sat alone on a ridge. “It was very still,” he noted, “with the silence which we have driven from our world.”
As I reread those words, now mounted on the walls of the new permanent exhibition of the great explorer’s photographs at Jahili Fort in