Thyestes killed Atreus. While Thyestes ruled Mycenae, the sons of Atreus, Agamemnon and Menelaus, were exiled to Sparta. There, King Tyndareus accepted them as the royalty that they were. Shortly after, he helped the brothers return to Mycenae to overthrow Thyestes, forcing him to live in Cytheria, where he died. As a token of good will and allegiance, King Tyndareus offered his daughters to Agamemnon and Menelaus as wives, Clytemnestra and Helen respectively. When Agamemnon left Mycenae for the Trojan War, Aegisthus seduced Agamemnon's wife, Clytemnestra, and the couple plotted to kill her husband upon his return. They succeeded, killing Agamemnon
Odyssey returned to Sparta after a long voyage by way of Egypt. There, on the island of Pharos, Menelaus encountered the old sea-god Proteus, who told him that Odysseus was a captive of the nymph Calypso. Incidentally, Telemachus learns the fate of Menelaus' brother Agamemnon, king of Mycenae and leader of the Greeks at Troy: he was murdered on his return home by his wife Clytemnestra and her lover Aegisthus. The story briefly shifts to the suitors, who have only just now realized that Telemachus is gone. Angry, they formulate a plan to ambush his ship and kill him as he