This dissertation analyzes the reception of Apuleius’ Metamorphoses in C.S. Lewis’ The Horse and His Boy through a case-study of the asinine transformations of Apuleius’ protagonist, Lucius, and Lewis’ antagonist, Prince Rabadash. Lewis’ use of Apuleius’ work as a model has been established in scholarship, specifically in his reworking of the Cupid and Psyche tale in Till We Have Faces (1956). This dissertation will analyze the elements of congruity between the tales of Lucius and Rabadash, namely: (1) the disregard of a superior’s warnings (Byrrhena, Aslan); (2) the “sin” of a personal lack of control (curiositas, pride) that leads to asinine metamorphosis; and (3) the reversal of metamorphosis through public religious ritual, thus resulti...