Who owns the myths of our ancestors, should JK Rowlings have to get permission from the Greek government to turn Cerberus into "fluffy?" So much myth is around us and part of our lives. Rowlings succeeds because she weaves the myths into a story of a boy growing from a child to a man, more the stuff of myths. Berne convention, which applied here in Australia says 50 years after the death of the Author and the work becomes public domain. In the EU is 90 years. Regardless I think there should be a time when things pass into the public domain. It would be unwise for us to be paying some descendent of Rowlings forever.