After being shot in the back and dying—again—Harper has lost many of her powers. Now, if the Greywalker dies one more time, she won’t be coming back. Harper’s only respite from the chaos is her work. But while conducting an investigation in the Olympic Peninsula, she sees a ghostly car accident and finds a victim who insists he was murdered, blaming the nearby picturesque community of Sunset Lakes—called “Blood Lake” by locals.

Harper soon learns that beneath the icy waters of the lake hides a terrible power and a host of hellish beings—both of which are held under the thrall of a sinister cabal that will use the darkest of arts to achieve their fiendish ends…