We were a small clutch of a nation between the wars, mapping and re-exploring. We gathered at Dakhla and Kufra as if they were bars or cafés. An oasis society, Bagnold called it. We knew each other’s intimacies, each other’s skills and weaknesses. We forgave Bagnold everything for the way he wrote about dunes. ‘The grooves and the corrugated sand resemble the hollow of the roof of a dog’s mouth.’ That was the real Bagnold, a man who would put his inquiring hand into the jaws of a dog.