“The mathematics of stories?” -I can almost hear the question. For indeed, unless a story is of the type “Mary bought twelve pieces of candy and wants to divide it equally between her three friends”, what, in Euclid’s name, are its mathematics? Well, let me say it from the start: nobody knows. I do not plan not present you with a science. I only want to say a few things about the directions in which some people are moving, to arrive one day, possibly, at an understanding of aspects of storytelling that can be called, partly, mathematical.