‘It’s a preposterous plan. Still, if you do get up it, it’ll be the hardest thing that’s been done in the Himalayas.’ So spoke Chris Bonington when Peter Boardman and Joe Tasker presented him with their plan to tackle the unclimbed West Wall of Changabang – the Shining Mountain – in 1976. Bonington’s was one of the more positive responses; most felt the climb impossibly hard, especially for a two-man, lightweight expedition. This was, after all, perhaps the most fearsome and technically chall...