I am not sure what it is about trains that is so fascinating; I personally love seeing the countryside whizzing by as I go from point A to point
B. There is something about being trapped with complete strangers on a long voyage by plane or train that gets people to share information about themselves that they would otherwise keep private. Alexander McCall Smith perfectly captures this in the novel where we meet four people from different walks of life who share some great stories about themselves. I listened to the audiobook and I was absolutely captivated. Well worth a listen.