In order for Odysseus to return home after Circe island what does he need to do?

To return home after his time on Circe's island, Odysseus must first journey to the Underworld to seek guidance from the prophet Tiresias. There, he learns the necessary steps to appease the gods and ensure safe passage back to Ithaca. Afterward, he must return to Circe to receive further advice and gather his men before setting sail again. Ultimately, he must navigate the challenges posed by the Sirens, Scylla, and Charybdis on his way home.