An article in the local paper attracts your attention:

Explorer plans expedition to discover site of lost civilization

Lima, January 12, 1921

Explorer Augustus Larkin is planning an expedition to the southern highlands of Peru, where he hopes to identify the site of a pyramid long forgotten by history. Following the discovery of a number of gold artifacts in the region, Larkin believes that he has found evidence that will lead him to their source. He is currently in Lima, planning the expedition, and is recruiting companions and possible backers.