The Theban plays comprise three plays: Oedipus Rex (also called Oedipus Tyrannus or Oedipus the King), Oedipus at Colonus, and Antigone. All three concern the fate of Thebes during and after the reign of King Oedipus. They have often been published under a single cover; but Sophocles wrote them for separate festival competitions, many years apart. The Theban plays are not a proper trilogy ( three plays presented as a continuous narrative), nor an intentional series; they contain inconsistencies. Sophocles also wrote other plays pertaining to Thebes, such as the Epigoni, but only fragments have survived.