It Begins (The Unseen, Part 1)

It Begins (The Unseen, Part 1) by Cusick, Richie Tankersley. mass_market edition. ISBN: 9780142404638.

Out walking alone one rainy night, Lucy becomes convinced that someone—or something—is following her. Spooked, she ducks into a cemetery to try and lose her stalker. Panicking in the darkness, she slips and stumbles into an open grave—only to discover she is not alone in there. . . . Lucy manages to escape, but she doesn’t get away unscathed. She begins having terrifying visions and dreams—and she still can’t shake the feeling of an unseen presence, always watching, waiting. . . . Who was the girl in the grave? And what has she done to Lucy?