Through the seventies and into the mid-eighties a cohort of young climbers challenged the siege mentality of their seniors on high mountains in the Greater Ranges with fast moving, lightweight expeditions run on a shoestring. Brian Hall was one of them and, in High Risk, he describes their daring adventures and the counterculture they lived within, their rivalries and relationships, and the terrible price many of them paid. When all was done, they had raised the standards of mountaineering by changing its style and ethics.