A history of Mount Everest expedition is intertwined with the disastrous expedition the author was a part of, during which five members were killed by a hurricane-strength blizzard. When Jon Krakauer reached the summit of Mt. Everest in the early afternoon of May 10, 1996, he hadn't slept in fifty-seven hours and was reeling from the brain-altering effects of oxygen depletion. As he turned to begin his long, dangerous descent from 29,028 feet, twenty...