One hundred separate versions have been published online by Editions at Play, a digital publisher that specialises in “books that cannot be printed”. You can read any of the 100 editions for free – but if you’re lucky enough to own one, prepare yourself for some creative destruction: each version can only be passed on to a new owner after it has been modified. Owners must add one word and remove two from each of the story’s 21 pages and are stopped from moving forward through the book until they’ve made the required interventions.