Artifact: Searching for 'The Head of Medusa (as Slain by Perseus of Seriphos) Location: Sarpedon, Cisthene, Ayvalik (opposite Lesbos), TURKEY NEW Sub-Location: 'Doorway threshold' of Monastery ceiling map, Petra, JORDAN... which contains TURKEY and the islands Seriphos and Ayvalik 'Home of Medusa'. WARNING: Medusa's sisters, the GORGONS Stheno and Euryale were immortal... so expect them to still be around in a subterranean location. Why wouldn't they be?