All the rapids, whirlpools, avalanches, deserts, swamps, communist bullets and faulty parachutes that have hitherto provided the obstacle courses in Ranulph Fiennes' eventful career take a poor second place when compared with travel on the North Polar Icecap in the freak winter of 1976-77. The polar journey involved four men and two women, with no previous polar experience and nothing but a grand design and singleness of purpose to drive them on through the agonies of snow-blindness, skinned toes, damaged, unhealing hands and the constant fear of frostbite.