The Alchemist

The Englishman, whom Santiago meets when he joins the caravan to the Egyptian pyramids, is searching for "a universal language, understood by everybody." What is that language? According to the Englishman, what are the parallels between reading and alchemy? How does the Englishman's search for the alchemist compares to Santiago's search for a treasure? How did the Englishman and Santiago feel about each other?