Are the covers not fabulous? I just finished number 2 & 3.
Victorian London (alternate reality one but still)? Check!
Not even the best example but the only one I stopped to mark. It's from W&W (read an e-arc on a Kindle ... so all I know is location 2357 of 3394, 69% of the way through the book) ...
"There was a moment of terror, wondering if the train would stop to find out who they were and why there were running on a normally vacant track. But the other train sped by, showing no interest whatsoever and no inclination to stop. it was mostly second class and clearly had its own problems to worry about.
If anyone saw Monique, a well-dressed woman of quality, dangling form the doorway, they apparently assumed everyone had problems in life and moved on."
Slight spoiler there. Sorry.
I really need to get a hold of copies of her other books to see if I like them as much. There are just too many books in the world to read and not enough time. See the author's website here.