I know in the writing I did for the book, I was really trying to emphasize the victorian (an urban setting distinct from the frontier "wild west" setting,) horror (especially cosmic horror,) and steampunk and retro-futurism. I talk a lot about the research done on the extinct culture of Malifaux (science being an element of Victorian and steampunk genres) and about revelations beyond the capacity of humans to concieve (a defining element of cosmic horror.)
Haha, did anyone believe any of that? Man, I just wrote about a bunch of ice-cold femme-fatales and barney badasses kicking ass and taking names. I even had one of the characters invent a new curse word.
Now, that's literature!
(Oh, I also snuck in a reference to Mallory, in there. That's romantic literature, punks!)