Of all the larger-than-life character portraits that have entered popular memory from the 1884-5 British Nile campaign – the future Lord Kitchener, a desert spy, disguised as an Arab and carrying a cyanide tablet in case of capture; the wiry and imperturbable General Wolseley, sticking to his plans against the odds; the extraordinary Colonel Fred Burnaby, greatest adventurer of his age, wearing a deerstalker and blasting away at the dervishes with his shotgun – none are more impressive for me than James Deer, known to his people as Sak Arakentiake ...