Premonitions

Gracie has premonitions. They've haunted her since before her mother's death. She doesn't know how to deal with them, and doesn't want to. She never knows whether she's going to see the past, or the future. It just comes to her. When Gracie's best friend, Emily, disappears suddenly, the premonitions she fears are the only clues to solve the mystery of where Emily has gone, and how she can be saved.