Book excerpt: On 15 February 2008, Mark Beaumont pedalled through the Arc de Triomphe in Paris. 194 days and 17 hours previously, he had begun his attempt to circumnavigate the world in record time. Mark smashed the Guinness World Record by an astonishing 81 days. He had travelled more than 18,000 miles on his own through some of the harshest conditions one man and his bicycle can endure, camping wild at night and suffering from constant ailments.