The Pentagonia is the collective title of a series of five novels by Cuban author Reinaldo Arenas. It was subtitled by its author "the secret history of Cuba." The novels were written from the mid-1960s through the late 1980s, and indeed, as was recounted in Arenas's autobiography Before Night Falls, were rewritten many times as manuscripts were lost, destroyed, and/or confiscated by Cuban authorities. Each of the novels is semi-autobiographical and has Arenas as one, if not more than one, of the major characters.