The narrator of "The Invalid's Story" and Thompson believe that there is a dead body in the box on the train. It is actually a box of guns, but since it is a long box, it does look like a coffin. The narrator is supposed to be escorting the body of a dead friend home for burial, but the boxes were accidentally switched at the train station. Before the train left, a man had climbed into the train car, unbeknownst to the narrator and Thompson, and left a bag of Limburger cheese sitting on the box when he jumped out of the car. As the train heats up, the cheese begins to melt and smell horrible. Both the narrataor and Thompson believe that it is the body producing the awful smell and take great lengths to cover it up, including smoking cigars and burning trash. If either had bothered to look in the bag sitting on top of the box, they would have learned about the cheese and thrown it off the train.