Riley and Rider have been best friends since 1st grade. They did everything together. They went to school together, they went shopping together, they went to the pool together. But when Riley and Rider are driving back from the park with Rider's older sister, and a car strikes them, a lot changes. Promptly two years after the accident, Riley is finally getting over Rider's death. Until...she starts to see Rider again. It was like she never left. She still goes around calling her "Pinkie" like she used to. Riley's sister thinks she's gone absolutely crazy. But the truth will uncover more than she bargained for...