As a fan of online novels, I don't know which audio novels have been taken down, nor do I know how to listen to them. However, generally speaking, audio novels that were removed from the shelves could be listened to on some audio novel platforms or some specialized audio novel websites. These platforms or websites might have audio novels that had been taken off the shelves or some audio novels that had been re-released. You can try to search for related audio novel platforms or websites or consult related audio novel enthusiasts for more specific information.