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
Ascalaphus (son of Acheron) and released him from his prison but then Demeter transformed Ascalaphus into an owl. According to another myth Persephone herself changed him into an owl by sprinkling him with water of the river Phlegethon. Ovid mentions: "So he became the vilest bird; a messenger of grief; the lazy owl; sad omen to mankind." As an owl, he became the familiar bird of Hades, god of the underworld. Ascalaphus (son of Acheron) In Greek mythology, Ascalaphus (; Ancient Greek: Ἀσκάλαφος "Askalaphos") was the son of Acheron and Orphne. Ascalaphus was the custodian of the orchard of Hades. He told the other