4. Mystic Lake (2012)

THERE WAS NO WAY TO SECOND-GUESS A KILLER WHO CHANGED THE RULES IN THE MIDDLE OF THE GAME

When FBI profiler Amberly Nightsong is sent to Mystic Lake to consult with local cops about three ritualistic murders, the last thing she expects is to be a piece in a madman's sick puzzle. Luckily, she has a sexy lawman on her side. Sheriff Cole Caldwell offers his protection—and stirs an awareness that leaves her breathless.

Cole, a widower, had shut himself off from the possibility of loving again. But as he works side by side with the single mom, he's drawn to Amberly and will do anything to erase the fear in her eyes. And as the danger intensifies in the form of a killer's twisted calling card, his vow to keep her and her young son safe will be put to the ultimate test.…..