Combining personal travelogue with history, Paddy Docherty chronicles the story of the Khyber Pass, the gorge separating Afghanistan from Pakistan and northern India that has been the path of invasion for generations of conquerors. Docherty paints a fascinating historical portrait of mountain warriors, religious visionaries, artists, scientists, and figures from Alexander the Great to Genghis Khan -- and examines the Pass’s modern significance as a lawless region of gunsmiths, drug smugglers, Taliban fighters and Al Qaeda operatives.  Through his own travels in this frontier region (from Pakistan through the Khyber to Kabul), Paddy Docherty brings the Pass’s epic history into the 21st century.