Tragedy in Ovid's Metamorphoses common one throughout the world of ancient tragedy. This theme is most clearly illustrated in Aeschylus' great trilogy the Oresteia and in Sophocles' trilogy on Oedipus. As in Hecuba's speech, characters from the works of Aeschylus and Sophocles both lament their great losses and what has led them to this point. One of the best examples of this theme that Ovid so clearly draws upon is the speech given by a messenger in Oedipus Rex that tells of the death of Jocasta and the blinding of Oedipus. This famous speech follows in the same theme of that given by Hecuba,
Oedipus Rex lead him to kill his father and marry his mother. Oedipus "chooses" not to return to Corinth after hearing the oracle, just as he chooses to head toward Thebes, to kill Laius, to marry and to take Jocasta specifically as his bride; in response to the plague at Thebes, he "chooses" to send Creon to the Oracle for advice and then to follow that advice, initiating the investigation into Laius's murder. None of these choices are predetermined. Another characteristic of oracles in myth is that they are almost always misunderstood by those who hear them; hence Oedipus's misunderstanding the significance