Well, this is embarrassing.
Back when I finally made the decision to break my enormous tome into a series, I somehow came to the conclusion that dividing it into books of about 20 chapters each would result in five books.
Nothing seemed obviously wrong with my calculation. I even used a calculator. And a quick browse convinced me that approximately every 20th chapter sat some sort of plot element I could tweak into a story conclusion.
Then today, while looking for that point in what is slated to become Book Four, I couldn’t find it. Huh? How come it seemed workable then, but the 20th chapter in this soon-to-be book doesn’t look remotely like anything that could be tweaked into an ending note?
Well, that’s my problem, not yours. Bottom line and long story short: looks like the series will have six books instead of five. And I’m not sweating it, because these are the kind of problems I enjoy solving.