Chapter 20: More or less clean from the beginning.
Chapter 21: There were some extra paragraphs needed in the beginning. I had cut off too much. I needed to put in some explanatory text that would give us a better insight into the characters around Polly.
And damn if my subconscious didn't barf up a hairball of a complication. Something that should have been obvious but was completely unexpected.
I wanted a complication so that I could keep writing Sterlings. Now they've given me a sequel. Into the queue it goes. Way, way down.
(If you want to know the major complication of the last three chapters, just look at the Music tag.)