Drakon Kholkikos

The dragon of Colchis never slept. This was the point of it — Aeetes had hung the Golden Fleece in a sacred grove of Ares, and the dragon coiled around the tree trunk, eyes permanently open, watching everything that entered the grove with the fixed attention of a creature that had never known unconsciousness.

It was enormous. Ancient sources describe coils thick enough to engulf a ship, though they disagree on other details. Some gave it multiple heads. Some said it was born from the blood of Typhon. Most agreed it was sacred to Ares and that its presence transformed the grove into a death trap that no warrior could survive by force alone.

Jason could not fight it. No one could. The solution was Medea, who prepared a potion from freshly cut herbs — a narcotic powerful enough to do what nature could not and force the sleepless dragon into unconsciousness. She sang an incantation as she applied it, her voice joining the drug in a combined assault on the creature's perpetual wakefulness.

The dragon's eyes closed for the first time in its existence. Its coils relaxed. Jason climbed over the slackened body, pulled the Golden Fleece from its branch, and ran.

Some accounts say the dragon was killed afterward. Others say it woke and lived on, guarding an empty tree. Apollonius of Rhodes left its fate ambiguous — the Argo sailed at dawn, and the grove and its guardian disappeared into the coastal mist of Colchis.

The sleepless dragon gave Western literature one of its most enduring images: the guardian who cannot be outfought, only outwitted.