We know Barb's big secret, and it leads her into trouble early on. Will the Grammar Nazi be exposed? Charged with crimes? Embarrassed and humiliated?
And Retta has a decision to make. I think our understanding of her deepens in this story, and that's always fun.
I'm often surprised by reader comments, like "I can't stand Barb!" or "Somebody needs to slap that Retta." I guess it indicates they're real to us. And that's kind of cool for an author to know.