When Jon Krakauer reached the summit of Mt. Everest in the early afternoon of May 10, 1996, he hadn't slept in 57 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, 20 other climbers were still pushing doggedly toward the top. No one had noticed that the sky had begun to fill with clouds. Six hours later and 3,000 feet lower, in 70-knot winds and blinding snow, Krakauer collapsed in his tent, freezing, hallucinating from exhaustion and hypoxia, but safe. The following morning he learned that six of his fellow climbers hadn't made it back to their camp and were in a desperate struggle for their lives. When the storm finally passed, five of them would be dead, and the sixth so horribly frostbitten that his right hand would have to be amputated. Krakauer examines what it is about Everest that has compelled so many people - including himself - to throw caution to the wind, ignore the concerns of loved ones, and willingly subject themselves to such risk, hardship, and expense. Written with emotional clarity and supported by his unimpeachable reporting, Krakauer's eyewitness account of what happened on the roof of the world is a singular achievement.