Mary B. “: an Untold Story of Pride & Prejudice” by Katherine J. Chen.
I kind of liked it; admittedly I don’t read much Jane Austen fiction, so I don’t know how it stacks up. It wasn’t a great book; I wish Mary had been a more consistently drawn character, and that her nemeses were a little less blatantly mean to the point of silliness. But I did want to keep reading to see what would happen, and I did end up liking her.