Question: seer who odysseus meets in the underworld?
Answer: Odysseus and Hades. Listening to the instructions of Circe, Odysseus travels to the underworld of Hades. For a map of Hades, click here (source: this page). In Book XI Odysseus must travel through death to continue his life in Ithaca, for this he must recieve advice from the famous Theban seer, Tiresias.