Awakened (Hidden #4)

After killing the biggest threat to their family and the world, Christine and Nathan are eager to move on with their lives, but Christine is sensing death stronger than she's ever sensed it before. With Nate constantly threatened with losing himself again and a deranged girl with a motive to kill on the loose, a number of things can drive their happily ever after painfully out of reach. When these forces converge with the darkest sort of evil, even fate isn't on their side. Failure would mean the end of the world, but success isn't in any of the futures that she can see. With the deaths of everyone she loves closing in, Christine learns just how strong her enemies are and how long they've been after her.