Just before I started this book, a friend and I were talking about the differences between the Thriller and Horror genres. For me, the line between the two is very fine. This book is both.

The style of writing is really cool: it's two points of view (Mariella and Tessa), and the story is kind of told in two different timelines. The author uses flashbacks for the characters to piece together the puzzle.

I really like the connection to past events and the conversations the characters had about both past and present.