Armed with a pair of trainers and a supermarket 'Bag for Life' as hiking kit, Katie, 31, set off to walk the Camino, the ancient pilgrimage route that runs through Northern Spain from the Pyrenees to Santiago de Compostela. She was searching for answers to questions thrown up by the Twin Tower attacks and their aftermath. How should we react to terrorism? Should we react at all? Should we wage a war on terror? If so, why? If not, why? As she walked, she reconnected with the wise parts of Western traditional thought, both Christian and pagan, and found, as we all do, that peace begins at home - inside ourselves.