K2By: Ed Viesturs, David Roberts A thrilling chronicle of the tragedy ridden history of climbing the world's most difficult and unpredictable mountain, by the bestselling authors of The Mountain and No Shortcuts to the Top Gripping . . . reveals a good deal about the rarefied noble gonzo world of high altitude mountaineering.The New York Times Ed Viesturs, one of the world's premier high altitude mountaineers, explores the remarkable history of K2 and