Euripides’ other play about Iphigenia, "Iphigenia in Tauris", takes place after the sacrifice, and after Orestes has killed Clytemnestra and Aegisthus. Apollo orders Orestes—to escape persecution by the Erinyes for killing his mother, Clytemnestra, and her lover—to go to Tauris. While in Tauris, Orestes is to carry off the "xoanon" (carved wooden cult image) of Artemis, which had fallen from heaven, and bring it to Athens. When Orestes arrives at Tauris with Pylades, son of Strophius and intimate friend of Orestes, the pair are immediately captured by the Tauri, who have a custom of sacrificing all Greek strangers to Artemis. Iphigenia is the priestess of Artemis, and it is her duty to perform the sacrifice. Iphigenia and Orestes don't recognize each other (Iphigenia thinks her brother is dead—a key point). Iphigenia finds out from Orestes, who is still concealing his identity, that Orestes is alive.