<p>Terry Pratchett’s Discworld is a post-structuralist
landscape where stories are real and magic is a mediating force between reality
and representation. Pratchett’s Discworld novels possess a strong undercurrent
of the recognition of the power of words and the ways in which stories or
representations threaten reality. This article examines <i>Wyrd Sisters</i> as a work of metafiction, that is, a work that
acknowledges its existence as a representational text and experiments with the
idea of “representationality.” <i>Wyrd
Sisters</i> takes three witches of the Discworld and places them in
Shakespeare’s <i>Macbeth</i>. The novel’s
parodic relationship with its hypotext highlights its existence as a work of
fiction and, furthermore, draws upon the Shakespearean <i>mise-en-abyme</i> to
illuminate the power of representation as a form of magic which has the power
to transform, alter, and replace reality. By exposing the artifice of
representation, metafiction issues a challenge to the ontological distinction
between fiction and reality: by exposing the ways in which texts are
constructed by language, the linguistic construction of reality is manifest. By
implication, the existence of a verisimilar reality independent of subjective
representation is challenged. </p>