Oedipus Rex and that deal with the story of Oedipus, "Oedipus Rex" was the second to be written. However, in terms of the chronology of events that the plays describe, it comes first, followed by "Oedipus at Colonus" and then "Antigone". Prior to the start of "Oedipus Rex", Oedipus has become the king of Thebes while unwittingly fulfilling a prophecy that he would kill his father, Laius (the previous king), and marry his mother, Jocasta (whom Oedipus took as his queen after solving the riddle of the Sphinx). The action of Sophocles' play concerns Oedipus' search for the murderer of Laius in
Oedipus Rex verbally accuses him of complicity in Laius' murder. Outraged, Tiresias tells the king that Oedipus himself is the murderer ("You yourself are the criminal you seek"). Oedipus cannot see how this could be, and concludes that the prophet must have been paid off by Creon in an attempt to undermine him. The two argue vehemently, as Oedipus mocks Tiresias' lack of sight, and Tiresias in turn tells Oedipus that he himself is blind. Eventually Tiresias leaves, muttering darkly that when the murderer is discovered he shall be a native citizen of Thebes, brother and father to his own children, and