"But wait, I can save you, free you from that great danger.
Look, here is a potent drug. Take it to Circe’s halls –
its power alone will shield you from the fatal day.
Let me tell you of all the witch’s subtle craft…
She’ll mix you a potion, lace the brew with drugs
but she’ll be powerless to bewitch you, even so –
this magic herb I give will fight her spells."
– Homer
The Odyssey, Book 10, lines 317-323. After Circe turns Odysseus’ men into pigs and erases their memories, Hermes comes to the rescue. The messenger of the gods offers Odysseus a drug that will make him immune to Circe’s potion when he visits her at the palace.