The Mystery of Mallory Irvine Author:Tom Holzel, Audrey Salkeld, Tom Hozel On June 8, 1924, George Mallory and Andrew Irvine set off from camp at 26,700 feet, bound for the summit of Mount Everest. After being spotted by Noel Odell in a brief moment when the clouds parted to reveal the summit ridge they disappeared into the clouds, never to be seen alive again. The Mystery of Mallory and Irvine is a thorough explorati... more »on of mountaineering's greatest mystery. Offering a complete history of the 1924 expedition, Holzel and Salkeld also cover the 1986 Everest expedition in which they participated to search for clues to the mystery; further conclusions reached in 1995; and changes to those conclusions in light of the 1999 discovery.« less