I recall reading a set of short stories many years ago. One of them concerned a train-load of people who crashed, yet the train continued on a journey to limbo. It culminated in the main character deciding to not believe in reality, and one of the other characters (an accountant or something) "killing" him for threatening the order of the universe. A bit confusing, but I am keen to re-discover the collection of stories. Can anyone help?
Pretty sure it was "Confidence Trick"
The premise was that the underground train had crashed. It seemed to the people inside that a lot had got out, but then they realised that the train wasn't stopping and that they had died and were going to an afterlife..
It was in John Wyndham's Jizzle collection https://en.wikipedia.org/wiki/Jizzle
Archive.org have the story in one of the scanned/OCR'd issues of Amazing Stories.