"Reeling from the brain-altering effects of oxygen depletion, Jon Krakauer reached the summit of Mt. Everest in the early afternoon of May 10, 1996. He hadn't slept in fifty-seven hours. As he turned to begin the perilous descent from 29,028 feet (roughly the cruising altitude of an Airbus jetliner), twenty other climbers were still pushing doggedly to the top, unaware that the sky had begun to roil with clouds ..." "This is the terrifying story of...