A small black-rooted, milk-flowered plant Hermes hands to Odysseus on Aeaea, with a warning: Circe’s wine will turn his men to pigs unless he carries this. He does. It works. The pigs change back.
Homer says only the gods can dig it up — mortals can’t even find the root. It’s the Odyssey’s clearest moment of magical realism: a plant that exists in our world and can be retrieved only from somewhere else.
What moly really is, no one has ever decided. Snowdrops? Wild garlic? A Mediterranean species lost to time? Botanists have argued for two thousand years. The Greeks didn’t seem to mind the ambiguity. Moly is what you carry past the threshold of a place that wants to remake you.