"Iphigeneia i Aulis" by Euripides is a tragedy written between 408 and 406 BC. At Aulis, the Greek fleet cannot sail to Troy until Agamemnon sacrifices his daughter Iphigenia to appease the goddess Artemis. When Clytemnestra and Iphigenia arrive under false pretenses of a wedding to Achilles, they discover the horrifying truth. The play explores family loyalty versus military duty as Iphigenia faces her fate, while Clytemnestra's rage foreshadows the bloodshed that will follow Agamemnon home from war. (This is an automatically generated summary.)
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.