Regency romance, mystery, steampunk, vampires & werewolves — oh my! This reminds me of Elizabeth Peterson's Amelia Peabody books, if Peabody had to deal with vampires and werewolves.

It's a better Regency with the aristocratic packs of werewolves, and vampire nests, and monster etiquette. Our heroine, Alexia Tarabotti, is souless, which means she's able to disarm monsters, and that she is very logical and unemotional. There is no fainting. This is the first book in the series, and I read all five of them within 4 weeks.