Heroism, sacrifice, defeat? The enduring mystery of George Mallory's final Everest attempt

It's almost a century since the 1924 expedition ended in tragedy, yet the question of whether the climbers conquered the summit remains unansweredOn the morning of 6 June, 1924, George Mallory - one of the world's greatest mountaineers - set off with his companion, Sandy Irvine, from a camp on the slopes of Mount Everest and headed for its summit.A veteran of three British Everest expeditions, Mallory knew the world's highest mountain better than any other climber at the time. He had come close to death there on three occasions. Continue reading...