What have I learned from this? That a story is like an iceberg...there is so much more beneath the surface. Thank you, everyone, for being patient while I work to get those unexpected moments and twists of character the pages (and phrasing) they--and you, as readers--deserve.
I regret that my estimations of time were *way* off the mark...but I can't regret the story-reasons that have added so many extra months to the process.
If I say, "just a few more weeks," will anyone believe me? But, really. The final phase of editing is upon us. Just a 1/4" of (double-sided) pages to mark up, and then the edits to enter into the publishing file, some minor adjustments to size the cover, and off to conversion and printing it will go!