The ancient tragedy.

Preferably, the topic is on one of the following tragedies:
• Aeschylus, The Oresteia: Agamemnon, The Libation Bearers, The Eumenides. Transl. by Robert Fagles. Penguin Classics, 1979
• Sophocles, The Three Theban Plays: Antigone, Oedipus the King, Oedipus at Colonus. Transl. by Robert Fagles. Penguin Classics, 1984.
• Euripides. Ten Plays. A New Translation by Paul Roche. Signet Classics, 1998
• Seneca. Four Tragedies and Octavia. Transl., with an Introduction, by E. F. Watling. Penguin Classics, © 1966