Death and What Comes Next is a Discworld short story by Terry Pratchett. It tells the story of a discussion between Death and a philosopher, in which the philosopher attempts to use the many-worlds interpretation of quantum mechanics to argue death is not a certainty.
The story was originally written in 2002 for the now-defunct online puzzle game TimeHunt and the text contains a hidden word puzzle, also devised by Pratchett, which provided a codeword for the game.
Like "Theatre of Cruelty", another of his short stories, Pratchett has allowed it to be put on the L-Space Web.