In Book 10 of The Odyssey, hat does Circe do to some of Odysseus’s men?In book 10
Circe turns Odysseus' men into animals by giving them a wine/honey potion.
When Odysseus comes to find his men who have not returned from a scouting expedition of the island, he runs into Hermes on the way who gives him an herb (Mole) which will protect him from Circe's spell.
With the herb doing the trick, Odysseus successfully resists the animal-spell, which turns Circe on. The two of them retire to the bedroom for years after that, until Odysseus again desires to return home.