I got it! I had been feeling from the beginning of this most recent start that Book 15 was good but missing something.
I found that something. I had an inkling a while back and had a note to myself to refocus the plot, but there are multiple subplots of Book 15. This particular focus is where I knew the main plot needed to be. The final vision didn't come until tonight. Everything else works into it. I was focusing on the wrong idea when I started the book, thinking I needed to make it more action, but that wouldn't fit for me. Despite the difficulties and the restarts, somehow there was a framework already being built into place by my subconscious that I couldn't see happening right away, until I let it show me instead of me bullying the plot into what I thought it should be. This tweaked idea now makes it all fit!
I'll rewrite a few scenes to bring it all together and then be better able to finish the story, because it needs to have all the pieces of a trap put in place for it to snap together at the right time that all the other subplots do, which is where I am in the climax. This one piece needs to be better developed from the beginning before I can finish, but once it's in there, the story will all make perfect sense and fit the series. It's brilliant! It only took me nearly to the end to figure it out. 🤦♀️
Now that I have the central premise, I need a good title about a trap or snare... 🤔
This proves, once again, that sometimes the hardest books to write end up being among the best of works, at least in my opinion. Never give up; never surrender!