This is a great paranormal book. It is an easy read because it keeps your interest. I really enjoyed the characters in the book and liked the story of Marrin and Mathias. I also enjoyed learing about the other characters in the book and their story as well. I think this book is great for YA or adults and they would equally enjoy this book. I am glad this book is a series because I am looking forward to seeing how this story and the characters play out. I also like that this book had other paranormal people in it other than just vampires. I received a complimentary copy of this book for an honest review.