Shortlisted for the Boardman Tasker Award for Mountain Literature.

In the summer of 2012, a team of six climbers set out to attempt the first ascent of one of the great unclimbed lines of the Himalaya - the giant Mazeno Ridge on Nanga Parbat, the world's ninth highest mountain. At ten kilometres in length, the Mazeno is the longest route to the summit of an 8,000-metre peak. Ten expeditions had tried and failed to climb this enormous ridge. Eleven days later two of the team, Sandy Allan and Rick Allen, both in their late fifties, reached the summit. They had run out of food and water and began hallucinating wildly from the effects of altitude and exhaustion. Heavy snow conditions meant they would need another three days to descend the far side of the 'killer mountain'.

'I began to wonder whether what we were doing was humanly possible. We had climbed the Mazeno and reached the summit, but we both knew we had wasted too much energy. In among the conflicting emotions, the exhaustion and the elation, we knew our bodies could not sustain this amount of time at altitude indefinitely, especially now we had no water. The slow trickle of attrition had turned into a flood; it was simply a matter of time before our bodies stopped functioning. Which one of us would succumb first?'

In Some Lost Place is Sandy Allan's epic account of an incredible feat of endurance and commitment at the very limits of survival - and the first ascent of one of the last challenges in the Himalaya.

Sandy Allan was born and raised in Dalwhinnie in the Highlands of Scotland, and has been climbing since his teens. During the 1980s and 1990s he established many hard new winter and mixed climbs in Scotland, and he continues to be an active climber and new route developer. He is an IFMGA/UIAGM mountain guide and has guided clients to the summits of many of the highest mountains in the world, including Mount Everest, Cho Oyu and Nanga Parbat. As well as guiding in the Himalaya, Sandy has been involved in many expeditions, including the Muztagh Tower, Lhotse West and the Scottish Direct Route on the South Face of Pumori. In 2012, over the course of eighteen days and in alpine style, he and his partner Rick Allen completed the first ascent of one of the Himalaya's most coveted unclimbed lines, the Mazeno Ridge of Nanga Parbat - a story recounted in his book In Some Lost Place. In recognition of their ascent, Rick and Sandy were awarded the 2013 Piolet d'Or.