Jules Stewart is a journalist, historian and author. He spent twenty years in Madrid working as a journalist, and now lives in London. His books include Albert: A Life (I.B.Tauris, 2011); On Afghanistan's Plains: The Story of Britain's Afghan Wars (I.B.Tauris, 2011); Crimson Snow: Britain's First Disaster in Afghanistan (2008); The Savage Border: The Story of the North-West Frontier (2007); Spying for the Raj: The Pundits and the Mapping of the Himalaya (2006) and The Khyber Rifles: From the British Raj to Al Qaeda (2005).