Forty-Four Book Four - 44, #4

Sometimes the living haunt the dead.It's been several months since Abby Craig was kidnapped and held prisoner on a small island. Several months since Nathaniel Mortimer conducted his experiments, trying to find out why she was the only one of his victims to survive. After returning home, Abby is more determined than ever to have a normal life. But there are unseen forces conspiring against her. Dreams and visions haunt her sleepless nights.
And someone or something is calling to her from beyond the grave. When Abby begins to see a ghost who seems to need something from her, she soon discovers she's not the only one being haunted. A terrible secret is about to come to light, and it will take all of Abby's courage to face it.