** spoiler alert ** 
 I went into this book with high expectations. I love spy books, shifter books and this had both. I came away a bit disappointed. Mateo was not a hard ass. He was annoying. There was just too much angst for this type of story. At the end Mateo loved Riley so much he leaves him. Come on put your big boy pants on and fight for your man not run away. The main action in the story was good. I liked it well enough to continue reading more in series.