I was watching the “The SPK” episode for The Blacklist TV series and they talked a little about the Porta Alchemic. So, I looked it up on Wikipedia and read about it which reminded me of the book where they went to Rome and Senka talked about portals when she was a younger vampire which got me thinking/gave me an idea that the Porta Alchemica could be used as a portal in an upcoming book/novel, short story/short stories, or in the Demon Accords Beginnings serial.
What do you think of my idea?