Writers don’t make up myths; they take them over and recast them. Even Homer was telling stories that his audience already knew. If some individuals present weren’t acquainted with Odysseus’s wanderings or the Trojan War, and were listening in for the first time (as I was when a child, enthralled by the gods and goddesses in H.A. Guerber’s classic retelling), they were still aware that this was a common inheritance that belonged to everyone. Its single author – if Homer was one at all – acted as a conduit of collective knowledge, picking up the thread and telling it anew.