Sybylla Melvyn is the main character in the novel "My Brilliant Career," written by Miles Franklin and published in 1901. Set in rural Australia, Sybylla is a young woman who dreams of becoming a writer while grappling with societal expectations and her family's struggles. Throughout the story, Sybylla's strong-willed nature and desire for independence challenge the traditional roles of women in her time. Her journey reflects the themes of ambition, identity, and the pursuit of personal fulfillment against the backdrop of Australian society in the late 19th century.