The story of Scotsman Andrew Murray's attempt to run from Scotland to the Sahara without a break. It is 2,659 miles from John O'Groats at the northern tip of mainland Britain to Merzouga in Morocco and Andrew planned to complete the distance in 85 days. That's the equivalent of 100 marathons run end to end--and not a single day off to recover. Attempting to cram in a staggering 8,000 calories every day is extremely difficult and doesn't stop the body from beginning to break down. This book is the story of that run, interwoven between tales of extraordinary endurance events in some of the most extreme locations in the world. It answers the question, 'why do it?', and offers a gripping insight into what drives an extreme athlete to break new ground. Murray's epic journey was the subject of a BBC documentary.