I'm looking for the title of a series of books that was authored or co-authored by a female. I believe it came out in the late 80's or early 90's.
The story had different groups of people in it like borers (people that dug and mined elements or ore), top dwellers, and a special group of people that had abilities where they wrote stories with special ink where the stories or books became other worlds that they manipulated and controlled. But often these worlds would become unstable.
I just remember getting into this book and never completing or finishing the series.
Anyone remember a series of books like this? I'm almost certain there was a female author, but I could be wrong on that.