In the play "Oedipus the King", written by Sophocles, Oedipus seeks to cure his land of the plague. To that end, he sends his brother-in-law Creon to find the answer to do so. While on his journey Creon met a blind prophet who told him about the man who killed Laius. The prophet told Creon that the son of Laius was the killer and that the son was also to go on to marry his mother. After meeting with this prophet, Creon goes back to meet with Oedipus and tell of his findings. As time passes throughout the play, Oedipus learns more and more about his family's dark secret. He learns this not only from Creon who talked with the prophet but also his wife, and the one man that survived the killing. Eventually in denial, Oedipus becomes paranoid.
