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They remained with her on the island for one year, while they feasted and drank. Finally, guided by Circe's instructions, Odysseus and his crew crossed the ocean and reached a harbor at the western edge of the world, where Odysseus sacrificed to the dead. He first encountered the spirit of Elpenor, a crewman who had gotten drunk and fallen from a roof to his death on Aeaea. Elpenor's ghost told Odysseus to bury his body, which Odysseus promised to do. Odysseus then summoned the spirit of the prophet Tiresias for advice on how to appease Poseidon upon his return home, and was told that he may return home if he is able to stay himself and his crew from eating the sacred livestock of Helios on the island of Thrinacia and that failure to do so would result in the loss of his ship and his entire crew. Next Odysseus met the spirit of his own mother, Anticlea, who had died of grief during his long absence. From her, he got his first news of his own household, threatened by the greed of the Suitors. Finally, he met the spirits of famous men and women. Notably, he encountered the spirit of Agamemnon, of whose murder he now learned, and Achilles, who lamented the woes of the land of the dead but was comforted in hearing of the success of his son Neoptolemus (for Odysseus' encounter with the dead, see also Nekuia).