Lying recumbent and wrecked, roughly 130 kilometres to the North of the glittering Saudi city of Medina, rests the rusted hull of a century-old Ottoman locomotive. Targeted by British Intelligence Officer T. E. Lawrence and future King Faisal I of Iraq’s small cadre of Arab fighters, the sun-baked cadaver exists as a relic of the First World War guerrilla campaign that buckled the formidable Ottoman Empire’s control over the Hejaz, turning the tide of the theatre’s conflict,