When seven year old Mave Braddock falls victim of a school bus accident, she knows it was an act of terrorism. As the only survivor, she suffered through the loss of her beloved twin, and eventually kills herself. About fifty years later, her ghosts still haunts the bus she died on. But when she falls attached to a teen girl named Diana who went exploring, could she actually hold a friendship with a human girl? As a ghost, she is used to being a gruesome murderer, but could she ever change? And what would Diana have to go through if she is caught with a dead girl?