Cressida Nova Reed has never had a spectacular life. Her family doesn't give her a second thought, admiring her perfect little sister. She doesn't have any friends, no one giving her a second look. She's just herself. She's alone and lonely, though she prefers it. She's much more mature than most people age. She's very smart and creative. She is extremely fond of the outdoors. She can be such a sweet, caring person, but that all seems to be ignored. She's practically invisible. A train appears out of thin air late in the night. It captures the attention of Cressida and refuses to let go. She can't get it out of her head. One night, she's determined to find out where this train leads. She doesn't know where she's going, but she's about to find out.