A solitary journey across Antarctica
David Grann writes: The man felt like a speck in the frozen nothingness. Every direction he turned, he could see ice stretching to the edge of the Earth: white ice and blue ice, glacial-ice tongues and ice wedges. There were no living creatures in sight. Not a bear or even a bird. Nothing but him. It was hard to breathe, and each time he exhaled the moisture froze on his face: a chandelier of crystals hung from his beard; his…