Interesting thing, getting to know your characters better. It can have a radical effect on things you'd previously written.
Case in point is chapter 12 and the introduction of Frannie. This was originally written with a slightly different interpretation of who Frannie is, and knowing this I went forwards in time to write a 'next time' chapter to get to know her better as my idea of who she was became more sophisticated.
So now I find when going back to chapter 12 that Frannie as written back than as a first draft is rather undercooked in terms of who I now know her to be.
The consequence of this is that Chapter 12 will be broken into two, or possibly three chapter-ettes as right now part 1 is clocking in at 30,000 words, part 2 at 13,500, and I still have a bunch of rewriting to do before I'm and the proof'n'publish stage. This will only increase the word count as I get more into the emotional impact of what happens.
Meantime all I can say is that it won't be too long, and when this 'chapter' begins to drop, so too does the increase in the pace of adventures of Jim and Lia.
Neen