A crippling blizzard.Grisly discoveries in an old church in Harlem.A small apartment building cut off by the mounting storm, its tenants trapped with a vicious killer that may or may not be human.And an unholy manuscript stolen from a dead sorcerer that could very well hold the secrets to opening the gates of Hell.Gina has seen strange visions since childhood. Her mother was considered insane for having the same affliction, and before her disappearance,...