More parallel realities! In this book, our world split apart during the Great Chicago Fire: our current world as we know it, and a different version.

I really like books with parallel universes, especially reading about the similarities and differences between the two. In the other universe, there are creatures called Shades lurking around, dubbed as monsters by humans.

There isn't much I can say about this book without spoiling it all, but let me tell you this: I ship Darcy and Connor. Okay? Not Darcy and Orion. (Though I'm not sure anyone did.) They have their love-hate moments, but you can tell that Connor really cares for Darcy. :)