Pepper’s car is being repaired and we find her riding the rapid train. She sees another passenger on the train who is a young blonde hair teenager. Arriving at Ella, Pepper finds that one of her daughter’s, Ariel is missing over the weekend. Ella tells Pepper why she was so upset. Forty-five years ago a friend of Ella went missing. In spite of immense search, Lucy was never found. Pepper realized the girl on a train is Lucy’s ghost. The ghost wants Pepper to find her body so she can have a proper burial. Ariel decides to help Pepper investigate and both are off on the investigation. At the same time, a serial killer is riding the trains and Quinn Harrison arrested him. The story takes off on several twists and turns, I found I couldn’t put the book down. The ending will surprise and shocked you.