Midnight became a thing in my mind sometime around book 16 of the Bear Mountain series. While I wasn't sure whose story it would be, I saw the scene at the train station from the very first moment the spinoff came to mind.
I didn't know anything else, but I knew there would be a train to Midnight.
And then I heard the song Midnight by Lianne La Havas... and I fell in love with it. My kidult had downloaded it to our shared iTunes account, so I was able to listen over and over and over again. It just felt like the song fit the story... I consider it my unofficial theme song.
If there's ever a movie (Ha!) I'd have to have this song...
So come now, hurry hurry, don't miss this train!