Oh. You didn't know? Well, back then Russia was divided into the Light Court and the Dark Court, and everyone knew that witches and vampires and stuff existed.
Katerina, our main character, has her own dark secret. She is a necromancer, and she hasn't told anyone (just because they know about them doesn't mean they like them). I like Katerina. She did have her moments, and sometimes she really bugged me, but I liked her as a whole. There are definitely some evil characters in this book, who I won't give away, but there are also quite a few lovable side characters as well.
The paranormal side of this story took a bit of getting used to. It was really hard to keep up with everything happening, but in the end I got everything sorted out.
Overall, this book is a great read. The historical fiction part of it is great, although the paranormalcy in it did sometimes get a bit confusing.