Dragons in Greek mythology guarded the Golden Fleece at Colchis. It was said to never sleep, rest, or lower its vigilance. According to Ovid's "Metamorphoses", the monster had a crest and three tongues. When Jason went to retrieve the Fleece, the witch Medea put the dragon to sleep with her magic and drugs, or perhaps Orpheus lulled it to sleep with his lyre. Afterwards, Medea herself had dragons pull her chariot. The Ismenian Serpent, of the spring of Ismene at Thebes, Greece, was slain by the hero Cadmus. It was the offspring of Ares, who later turned the hero into a serpent. According to
Nart saga Ossetian ones, which have been "reworked to form a smooth narrative". Some motifs in the Nart sagas are shared by Greek mythology. The story of Prometheus chained to Mount Kazbek or to Mount Elbrus in particular is similar to an element in the Nart sagas. These shared motifs are seen by some as indicative of an earlier proximity of the Caucasian peoples to the ancient Greeks, also shown in the myth of the Golden Fleece, in which Colchis is generally accepted to have been part of modern-day Georgia. In the book "From Scythia to Camelot", authors C. Scott Littleton and