I’ve just been re-reading a fascinating book I found whilst browsing dusty shelves in a bookshop in Rawalpindi when I was last in Pakistan (1997). It is called “Adventure Through Khyber” by Victor Bayley … His task: to design and supervise the construction of a railway through the Khyber Pass, a railway which would eventually link far off Bombay to the Afghanistan Border at Landi Khana.