A lost climber, a missing camera and fears of an astonishing Chinese conspiracy to hide the truth: Mountaineer charts intrepid attempt to force Everest to reveal final secret after 97 years

© Matt IrvingClimber and author Mark Synnott photographed by fellow climber Matt Irving on Everest’s Northeast Ridge in 2019
Climber and author Mark Synnott photographed by fellow climber Matt Irving on Everest’s Northeast Ridge in 2019