He was talking about a Nepali soldier he had been told about, who had escaped from a Japanese POW camp in Burma, and had trekked across hundreds of miles of jungle to an Allied controlled area in India. When asked by amazed officers how the ragged but otherwise healthy looking man had pulled this off, he smiled and showed them a map he had been given by a British soldier in exchange for his cap badge. He smiled and told them it was a very accurate map and had served him well. It was a street map of London!