Well, I finished the "filler" that was driving me batty all day. So, that's the second half of a truly irritating chapter done. I have about another chapter and a half to write, and that will mean I have the first 18 consecutive* chapters done.
*realize that I have found that writing the book totally out of order** is the best way for me to prevent writer's block. So, though I have 28 out of 35 chapters done, there are gaping holes in the middle that prevent the novel from being complete. I'm at the stage of patching those holes, now.
**yes, this does present some revision issues when I realize that the chapter 26 that I wrote last month was totally just superseded by the chapter 13 I cranked out yesterday. But I'm making do.