Synopsis: Hamlet: An UPDATED EDITION from the Folger Shakespeare LibraryHamlet is Shakespeare's most popular, and most puzzling, play. It follows the form of a "revenge tragedy," in which the hero, Hamlet, seeks vengeance against his father's murderer, his uncle Claudius, now the king of Denmark. Much of its fascination, however, lies in its uncertainties.Among them: What is the Ghost--Hamlet's father demanding justice, a tempting demon, an angelic…