The 13th Passenger
The Number That Never Appeared on the Manifest.

Sage Long wakes up on a luxurious, moving train with no memory of how he got there. His only clue is a ticket for seat thirteen - a seat that doesn't officially exist. As the train hurtles through a frozen wasteland, Sage must confront the other passengers and the unseen force watching from the shadows. A chilling psychological mystery about the things we leave behind.