Two instances: 1. When Odysseus is on the island of Calypso, Hermes comes as a messenger to persuade Calypso let Odysseus go. 2. Hermes gives Odysseus advice on how to avoid danger from Circe and how to get his men back from her. He gives Odysseus a magical plant to protect Circe from her charms, tells Odysseus to pretend to want to kill Circe after she tries to cast her spell, and warns Odysseus not to sleep with Circe before she has promised to do no harm to him.
circe sends odysseus to the underworld
Circe turned Odysseus' men Into swine.
There is no mention of a compass in Circe's gifts to Odysseus.
Hermes warned Odysseus about Circe's magic.
Circe turns Odysseus' men into swine.
Circe was opening the door of her estate for Odysseus.
Odysseus' crew men ask Odysseus to leave Circe's island after a year on her island.
Circe warns Odysseus about the Sirens, Charybdis, and Skylla.
Circe turned half of Odysseus' men into swine (pigs).
the dangers that he would face at sea that is what circe warned odysseus.
Circe's final warning to Odysseus was to not slaughter Helios's cattle on Thrinacia