“And when my priests and I have finished redacting the prophetic sibylline books, I shall order all of them destroyed except the re-authorized four scrolls that will be gilded and installed in the annex of the new temple I will build for Apollo in the Forum. Please, if you don't mind, insert into the story the oracle that wrote the books, the Cumaean Sibyl — as prominently as possible. Make her somehow the authorized gate to ultimate knowledge or her cave the transition by which the hero experiences the underworld.”