Oedipus the King," the king of Thebes renowned for his intelligence and riddle-solving (saving the city from the Sphinx), seeks to uncover the previous king's killer, unaware of the prophecy that he would kill his father and marry his mother. Dramatic irony is evident in his search for the killer, who is himself. Teiresias foretells his imminent blindness, pointing out his current blindness to his true situation and family. Upon discovering the horrific truth (killing his father and marrying his mother), Oedipus blinds himself, realizing fate too late, and thus "sees" the truth he had been blind to.