Spy on the roof of the world - Sydney Wignall

When Sydney Wignall set off on an "illegal" climbing expedition tothe Himalayas in the 1950s he little thought that he would becomeinvolved in an extraordinary, life-threatening adventure which wouldinvolve both Indian and Chinese governments at the highest level.Betrayed by one of the many spies operating on the frontier, hisgroup was captured, interned in appalling conditions, and interrogated.Only when international pressure grew, his group was released to walkthrough Nepal back to India. But the Chinese had no intention that theyshould get back alive. Abandoned at the foot of one of the highestpasses in the Himalayas, a pass never before climbed in winter,starving, exhausted and physically broken, their journey back inatrocious conditions has become one of mountaineering's great epics.