It wasn't every day you found fingers poking up from the ground. Especially while supervising a bunch of tweenagers. But that was just Rylie's luck. Ever since she'd become a park ranger, bodies seemed to show up all over the place-on a trail, in a catfish trap, on a frozen beach. Now, they came from below. Like zombies. And it wasn't even Halloween. A new clue in a cold case should have gotten the police...