Heisenberg’s Uncertainty Principle, stating that the act of measurement is bound to affect the attributes of the thing measured, once again provides a model for this approach. Heisenberg’s scientific ideas provide metaphors that illuminate for 11s how habits of reading transform that which we read and thus generate multiple interpretive options in what seems to be the most prescriptive of genres. From this model, I argue that the pleasure that comes from fairy tales grows out of a reader’s inclination to perceive numerous discourses within their narratives. Understanding a fairy tale is not a matter of articulating a particular interpretation. Rather, it encompasses the process of mapping the points where the narrative invites intervention (measurement) and therefore encourages the reader to reconfigure the story.This approach means asking readers to take into account how conceptions of Harry Potter and the Sorcerer’s Stone change after the application of interpretive methods. Though at first this description may seem to echo familiar elements of reader response or reception theory, in fact this approach offers a more radical range of options for generating meaning. It assumes that any reading, whether governed by conventional or unorthodox methods, will have the same destabilizing effect. If ever}’ reading changes the thing that is read in a unique fashion, then the text of Harry Patter and the Sorcerer’s Stone is never the same work twice running.