Well, a change in point of view seems to be just what this stumbling block needed. It isn't stellar, it isn't as lovely as I know it can be. But it's done, and it's easier to revise crap than blank pages. I have a teeny bit left to finish at the end of the chapter in question, and when I do I'll have fifteen consecutive chapters done. My next hole is the first half of chapter sixteen. After that's done, I'll be complete through chapter 18!
It seems so trivial to celebrate over these tiny milestones, but stuck in this long last stretch, it's what keeps me going.