GreywalkerPaperback - 2006
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 and ghosts, magic and witches, necromancers and sinister artifacts. Whether she likes it or not.