Dragons in Greek mythology placed it in the heavens as the constellation Cancer. After slaying the serpent, Heracles buried the immortal head under a rock and dipped his arrows in the creature's blood to make them fatal to his enemies. In one version, the poisoned arrows would eventually prove to be the undoing of his centaur tutor Chiron, who was placed in the heavens as the constellation Centaurus. In Greek mythology Python was the earth-dragon of Delphi, always represented in the vase-paintings and by sculptors as a serpent. Various myths represented Python as being either male or female (a drakaina). Python was the chthonic
Lerna form decorative patterns on some pieces, or rolled scribed cylinders have been used to make banded patterns. Remarkably, banded patterns made with the self-same seal have been found at Lerna, Tiryns and Zygouries. The burning of the House of Tiles brought the Third Period at Lerna to a decisive close; a low round tumulus marked its undisturbed, apparently sacrosanct site. Lerna IV (Early Helladic III) marked a fresh start, not as a fortified seat of central authority this time, but as a small town, with houses of two and three rooms with walls of crude brick set upon stone foundations;