The unsolved mysteries of George Mallory, Sandy Irvine, and their legendary 1924 Everest expedition There is no mystery more compelling in the history of mountaineering than the disappearance of George Mallory and Sandy Irvine close to the summit of Mount Everest on June 8, 1924. Over 100 years after they were last seen ‘going strong for the top,’ the question of exactly what happened to them on that fateful day has not been answered. George Mallory’s frozen remains were discovered in 1999. But in September 2024, a climber found an old boot lying out in the open on the Central Rongbuk Glacier on Mount Everest, several miles from where Mallory lay. The boot contained a foot, and a sock bearing a nametape spelled out in red: A.C. IRVINE. Did Mallory and Irvine reach the summit—becoming the first to do so—or did they perish while ascending? What happened to the camera that Irvine may have carried, which would have documented their climb? The Everest Mystery explores the life of Sandy Irvine, his relationship with George Mallory, and the many theories about what happened to them so close to the summit of Mount Everest. Above all, it restores Sandy Irvine to his place in the great mystery of Everest 1924.