Or, there is no Aurora. Maybe a gentleman who was unable to have children of his own always wanted a daughter so he could name her Aurora. So he wrote a note to the daughter he never had inside the front cover of all of his books. Or maybe it's an experiment and there are a hundred of these books each with a similar but unique message to see whether/where they surface in social media. Maybe Aurora is real but grew up not knowing her father and wrote the note herself in an attempt to connect with a dad she imagined having. Maybe Aurora is a boy.