Mrs Sherlock, thanks for the summary of THe Postmistress. I was unfamiliar with either title or author, but am now #2 on my library's hold list.
Frank Lloyd Wright was/is a big name in my hometown of Racine, WI. He designed the Johnson Wax building and also Wingspread, the home of the HF Johnson family (now a conference center). When I was a kid every out of town visitor to my home was dragged over to tour the building. And as a kid, what fascinated me was the fact that there were no windows.
Now, across the river from my SE Missouri home is the Stinson Library in Anna, IL, supposedly designed by FLW, but probably more likely by one of his students. I've been saying, for the past 30+ years, that I'd like to go visit it. Maybe some day.