Hugh Thomson’s travel books include The White Rock: An Exploration of the Inca Heartland and Cochineal Red, both about Peru, as well as Nanda Devi, a journey to a usually inaccessible part of the Himalaya. His memoir, Tequila Oil: Getting Lost in Mexico, was serialised by BBC Radio 4. For The Green Road into the Trees, he returned to Britain to write about his own country. It won the inaugural Wainwright Prize for Best Nature and Travel Writing. For the sequel, One Man and a Mule, he decided to have ‘a South American adventure in England’ by taking a mule as a pack animal across the North of England.