Unlock your inner explorer in this riveting account of one of history's greatest adventures--and a study of the seven character traits all great explorers share. In 1856, two intrepid adventurers, Richard Francis Burton and John Hanning Speke, set off to unravel a geographical unknown: the location of the Nile River's source. They traveled deep into a forbidding and uncharted African wilderness together before arriving at two different solutions to...