On her 18th birthday, heiress Willa is dying of bone cancer. Her three brothers dismiss her agony and force her onto amusement-park rides. Unaware she has died, they give her celebration—and her place in the family—to their beloved foster sister. From beyond the grave, Willa watches the sister's sinister schemes unravel. As her brothers discover the truth, their cruelty turns to devastating regret. But how do you make amends to someone you can never bring back?