The fairy Morgana, a central figure in Arthurian legend, was not always the sinister witch she is often portrayed as today. In early versions of the stories, written around 1150 in Geoffrey of Monmouth’s Vita Merlini, she was a healer, mathematician, and expert in the use of plants for medicine. She was depicted as a queen who ruled Avalon, a magical island, alongside her eight sisters. She was also described as a metamorph, meaning she could change her appearance, and she taught subjects such as astronomy and financial management. This portrayal reflected the early medieval interest in natural philosophy — an approach to understanding the world through logic and observation, rather than through religious beliefs. As Arthurian stories became part of French chivalric romances in the 12th and 13th centuries, Morgana’s character began to change. She remained a powerful healer but lost her position as queen of Avalon. Instead, she was reimagined as King Arthur’s half-sister, born to the same mother but a different father. Over time, her character darkened, and she became more vengeful and cruel. She used her magical abilities to trap Arthur’s knights, especially Lancelot, with illusions and enchantments. One famous tale describes her creating the Valley of No Return, a place where unfaithful lovers were trapped for decades — until Lancelot broke the curse. Morgana’s transformation into a villain can be partly explained by shifting medieval views on witches and magic. In the later Middle Ages, witches were often seen as dangerous figures who used their powers for selfish or harmful purposes. The chivalric romance genre, which emphasized strict codes of honor and heroism, also contributed to Morgana’s evolution. She became an antagonist, a figure who challenged knights on their quests and represented the moral and physical obstacles they had to overcome. Modern adaptations, such as the BBC series Merlin (2008–2012) and the Irish-Canadian series Camelot (2011), continue to portray Morgana as a complex and compelling character. In these versions, she is often an ally of Mordred, the prophesied enemy of King Arthur, and she opposes Arthur and his knights. Despite these changes, Morgana remains one of the most popular figures in Arthurian legend. Her image has influenced the modern archetype of the witch, appearing in fairy tales, comics, and even superhero stories, where she often represents mystery, power, and transformation.