I really enjoyed The Maze and I thought that several others in this series had good plot, romance, and action. This book fell ridiculously flat, and the characters were static. Even the "romance" between the sheriff and mother of the adorable Autumn (who was the only round character in the book), wasn't a romance. It was an emotional attachment that was hardly romance. Absolutely no sparks or chemistry. Even Savich and Sherlock were simply partners.
What was truly bad about this story is that we were back to woo-woo-voo-doo and mind-games. It felt more X-Files than FBI. At book 13, I've also stopped feeling the FBI focus now that the stories are taking place in small towns. I often question, "Why is the FBI involved here?"
This was not Catherine Coulter at her finest. Her funniest, most romantic book was definitely The Sherbrooke Bride. It also had a bit of fantasy/ghosts, but The Bride series had true laugh-out-loud characters. However: stretching that series to 13 would also have made the characters cliche and campy.
This is a "meh" for me. It's light, adult level reading, and the characters are flat. There's a lot of action, adventure, and movement in the plot, and it does feel a bit like Numb3rs in the rotation of the story. If you choose to read, do so from the library. Don't waste your funds on the $20 hardback.