This traditional form of a plot is derived from Aristotle (Lane 1947: 58), and is conventionally represented as ‘Freytag’s Triangle’, which starts from an exposition, moves through a complication or rising action to a crisis point, and finally to a resolution (Freytag 1968: 105). This movement from beginning to end can also be seen as what Laurel calls the ‘flying wedge’, which consists of “a progression from the possible to the probable to the necessary” (Laurel 1993: 70).