The famed oracle of the dead Ephyra is very old, lying near the river of the dead Acheron, and lake Acherousia. In Homer this is where Circe sends Odysseus to meet Teiresias. In his play Menippos or the Necromancy (161-162 BC), Loukianos provides a lively description of the rites that were held there. This article describes the temple that was built in Hellenistic times, the underground chamber whose roof was held up by semi-circular arches, the arches under which the visitor to the oracle had to pass in order to enter, also all the ritual is described. The necromancy was destroyed by the Romans in 167 BC.