Three casinos. Three bodies. Three days.
After a string of brutal murders in Las Vegas, Cassie Hobbes and the Naturals are called in to investigate. But even with the team's unique profiling talents, these murders seem baffling: unlike many serial killers, this one uses different methods every time. All of the victims were killed in public, yet the killer does not show up on any tape. And each victim has a string of numbers tattooed on their wrist. Hidden in the numbers is a code—and the closer the Naturals come to unraveling the mystery, the more perilous the case becomes.
Meanwhile, Cassie is dealing with an equally dangerous and much more painful mystery. For the first time in years, there's been a break in her mother's case. As personal issues and tensions between the team mount, Cassie and the Naturals will be faced with impossible odds—and impossible choices.
- Things are tied together. I really don’t want to give anything away, but things come around and situations are clarified. I liked how we were give me inside knowledge.
- The Fibonacci Sequence the main aspect of the murders was really interesting. I also love the setting of Las Vegas.
- Even though Cassie and Dean are not very snuggly, I do love the briefest of looks into their little romance.
- I love that these teens are teens. They rebel, the make stupid decisions but for the most part, they get what they need to done. I just feel like they are true to real life, well as real life as teens working with the FBI would be.
- I love all the kids quirks. I laughed out loud a few times at Lia. I love Sloane mind. They are just so fun and written so distinctly.
- The ending got complicated. It set up for the fourth book but who knows when we get our hands on that. It would have been nice to get pieces of the puzzle on the whole background a little earlier so that it wasn’t all dumped on you at the end. There are parts in this book, like the others where the villain’s POV is show, I would have liked some of the information put into those chapters.