[1] As conventionally reconstructed, this trilogy reimagines the myths of Prometheus found in Hesiod's Theogony and Works and Days.
In the first play, Prometheus Bound, the Titan is chained to a rock and tortured for giving fire to humankind, as well as teaching them other arts of civilization.
Despite the paucity of direct evidence, Prometheus' foreshadowing of future events in the trilogy's first play suggests that the final play concerned itself with Prometheus' knowledge of a secret that could potentially lead to Zeus's downfall, and how the revelation of this secret leads to reconciliation between the Titan and Olympian.
The product of this union will indeed be a son greater than the father, namely Achilles, Greek hero of the Trojan War.
[citation needed]Some scholars have taken this to mean that in the Unbound, Prometheus prophesies that eventually (in the Fire-Bringer), Zeus would reconcile with him, and institute some kind of festival in his honor.