The Author Screwed Up.
For those of you paying attention, I think I've figured out how to proceed with the story, on a conceptual level at least.
Unfortunately, all this thinking has made me realize that the last 'Interlude' was a little premature. There's stuff that I need to cover in before that which may invalidate it entirely depending on how things go. As such, I will be taking it down for the time being.
Thank you for your patience.