Broken

Broken, Kelley Armstrong's sixth novel, marks the welcome return of kick-ass werewolf Elena Michaels. When the not entirely trustworthy half-demon Xavier calls in a favour, it seems easy enough - steal Jack the Ripper's "From Hell"letter away from a Toronto collector who had himself stolen it from the British police files.
But nothing in the supernatural world is ever as simple as it seems. When Elena accidentally triggers a spell placed on the letter, she opens a portal into the nether regions of Victorian London. Toronto may be looking for a tourism boost, but "Gateway to Hell" isn't quite the new slogan the city had in mind.

With thieving vampires, killer rats and unstoppable zombies on the loose, Elena and the rest of her Pack have a lot on their hands. Oh, and then there's the small matter of Elena's pregnancy...