Metro magazine recently wrote that Andy Kirkpatrick makes Ray Mears look like Paris Hilton. Words like boldness, adventure and risk were surely coined especially for him. As one of the world's most accomplished mountaineers and big-wall climbers, he goes vertically where other climbers (to say nothing of the general public) fear to tread.For the first time, this cult hero of vertical rock has written a book, in which his thirteen-day ascent of Reticent Wall on El Capitan in California - the hardest big-wall climb ever soloed by a Briton - frames a challenging autobiography. From childhood on a grim inner-city housing estate in Hull, the story moves through horrific encounters and unique athletic achievements at the extremes of the earth. As he writes, 'Climbs like this make no sense ... the chances of dying on the route are high.' Yet Andy, in his thirties with young children, has everything to live for. This is the paradox at the heart of the story.