Unraveling a Century-Old Mystery: How a Shocking Everest Discovery Sparked a New Partnership and Book on George Mallory and Sandy Irvine

There is no mystery more compelling than the unsolved enigma of George Mallory, Sandy Irvine, and their legendary 1924 Everest expedition. For a century, mountaineers, historians, and enthusiasts have debated the final hours of the two British climbers. While numerous theories have been put forward regarding their route, their survival, and their ultimate fate, the definitive answer to whether they reached the summit of Mount Everest first remains unknown.

Now, a new book titled The Everest Mystery seeks to shed fresh light on these enduring questions. Written through a unique collaboration, the book brings together Julie Summers, the great-niece of Sandy Irvine, and Jochen Hemmleb, widely regarded as the world’s foremost authority on the 1924 Everest expedition. Together, they explore the life of Sandy Irvine, his intricate relationship with George Mallory, and the vast web of theories surrounding their disappearance. In reflections shared with The History Reader, the co-authors detail the remarkable series of events that brought them together to write a book that ultimately proved to be a fitting partnership—mirroring the historical pairing of Irvine and Mallory a hundred years ago.

The catalyst for this new literary project arrived unexpectedly in the autumn of 2024. On October 8, Julie Summers received a startling phone call in Oxford from award-winning American filmmaker Jimmy Chin. Chin informed her that he and his climbing team had recently made a remarkable discovery while navigating the Rongbuk Glacier at the base of Mount Everest’s formidable north face. Protruding from the melting ice was an old leather mountaineering boot. Inside the boot lay a foot and a sock bearing a distinct name tape reading "A.C. Irvine."

For Summers, the news was deeply personal; the boot belonged to her great-uncle, who had vanished near the summit of the world’s highest peak alongside his climbing partner, George Mallory, a century earlier. While Mallory’s remains had been discovered decades prior in 1999, no trace of Sandy Irvine had ever been officially recovered until this breakthrough.

Just three days after Summers received the life-changing phone call, Jochen Hemmleb experienced a similar emotional rollercoaster when he read about the discovery online. Hemmleb, a prominent writer and filmmaker specializing in mountaineering history, had been captivated by the Mallory and Irvine mystery since his teenage years. His deep involvement in the subject was not merely academic; he had been one of the primary instigators and members of the 1999 expedition that successfully located Mallory’s body, and he had subsequently undertaken three dedicated searches specifically aimed at finding Sandy Irvine. Furthermore, Hemmleb and Summers had shared a friendship spanning twenty-five years. Recognizing the profound significance of the find, Summers suggested a couple of weeks later that the two combine their expertise to take a long, fresh, and all-encompassing look at the life of Sandy Irvine and mountaineering’s greatest riddle.

To embark on this investigative journey, the authors felt it essential to trace the history back as close to 1924 as possible. They turned first to the library of Merton College, Irvine’s alma mater, which serves as a repository of his memory and is Summers’s home ground. Reviewing Irvine’s personal diary, letters, and detailed technical drawings—including his modifications to the oxygen apparatus used on the Everest expedition—provided the co-authors with renewed, intimate insights into Sandy’s character and the dramatic events of a century ago.

The research extended deep into Irvine’s personal and professional networks. Personal conversations with the grandson of Noel Odell, the legendary geologist and mountaineer who had recommended Irvine for the expedition and remained among his closest friends, helped bridge the gap to Irvine’s inner circle. They also connected with the granddaughter of expedition colleague John Hazard. At Oxford’s Museum of Natural History and the Bodleian Library, Summers and Hemmleb consulted personal letters and memoirs belonging to Lawrence Wager and Percy Wyn-Harris, the two climbers who famously discovered Sandy’s ice-axe high on Mount Everest in 1933. These historical documents provided critical perspectives on the brutal terrain and the complex decision-making processes that Mallory and Irvine would have confronted during their final push.

To carry readers further up the mountain and through time, the project drew extensively upon Hemmleb’s nearly forty years of specialized research into the disappearance. This vast archive of knowledge included the history of an early Chinese expedition that reportedly discovered the bodies of the two climbers in 1960 and 1975, the landmark 1999 discovery of Mallory, the 2001 location of the 1924 Camp VI alongside an old pre-war woolen mitten found high on the mountain, and the recently revealed recovery of an old crampon at an altitude of 8,580 meters, which currently stands as the highest physical trace of Irvine found to date.

A pivotal breakthrough, however, came from a personal conversation with Christopher Norton, one of the grandsons of Edward Norton, the leader of the 1924 expedition. Speaking with Christopher felt almost as though he were channeling the thoughts of his grandfather, offering a previously overlooked window into the minds of expedition leaders and climbers during those critical final days. This crucial piece of oral history lent substantial weight to what had previously been educated guesses, assumptions, and fragmented theories. Viewed from the perspective of a century later, the entire narrative suddenly clicked into place with an unprecedented level of detail, appearing far more streamlined and comprehensible than it had to the researchers before. This realization deepened their respect not only for the extraordinary physical feats accomplished by the climbers in 1924, but also for the keen intelligence and careful observation skills that underpinned their expedition planning.

The culmination of this shared authorial journey outlines what Summers and Hemmleb believe is the most plausible scenario regarding the final days of Sandy Irvine and George Mallory. More importantly, the work restores Sandy Irvine to his rightful place in history—not merely as a footnote in a tragedy, but as a fully-fledged expedition member, a skilled engineer, and an adventurous, fun-loving young man living life at his absolute peak. For the authors, the project proved deeply fulfilling by allowing them to merge their respective strengths: Summers’s intimate, familial knowledge of Irvine’s background, and Hemmleb’s rigorous, detective-like inquiry into the historical mystery of the 1924 disaster. It proved to be a partnership of perfect balance, mirroring the historical bond shared by their two main subjects a century ago.