A psychiatric patient is haunted by a deadly ghost in this supernatural thriller by the author of The Lighthouse and The Island. Moira Flynn hears voices. The voices of ghosts. As Moira's doctor uncovers more of her past, he realizes that her ghosts, Jack and Isabella, are real. And Jack is determined to drag Moira into the afterlife with him. At the psychiatric hospital, Moira meets Adam who tells her that he has been able to see ghosts since he was a child-and he can see hers. Jack is jealous of Adam, and Moira knows Jack can be violent and his powers are growing. Will she be able to escape the ghosts that haunt her--or will they drive her to the edge of insanity?