Greywalker Harper Blaine sees a ghostly car accident whose victim insists that it was no accident and discovers that the icy waters beneath Sunset Lake are home to a host of hellish beings under the thrall of a sinister cabal.

After being shot in the back and dying-again- Greywalker Harper Blaine's only respite from the chaos is her work. But while conducting a pre-trial investigation in the Olympic Peninsula, she sees a ghostly car accident whose victim insists that he was murdered and that the nearby community of Sunset Lakes is to blame. Harper soon learns that the icy waters of the lake hide a terrible power, and a host of hellish beings under the thrall of a sinister cabal that will use the darkest of arts to achieve their fiendish ends.