When Harper comes to in the hospital, she begins to feel a bit ...strange. She sees things that can only be described as weird-shapes emerging from a foggy grey mist, snarling teeth, creatures roaring. But Harper's not crazy. Her death has made her a Greywalker-able to move between our world and the mysterious, cross-over zone where things that go bump in the night exist. And her new gift (or curse) is about to drag her into that world of vampires...