Trevethlan: A Cornish Story Vol. I is a historical novel set in the mid-19th century, revolving around the declining fortunes and legacy of the Trevethlan family. The story opens with the deathbed scene of Henry Trevethlan, the patriarch, who passes on a heavy responsibility to his son, Randolph. Henry urges Randolph to preserve the family's honor and legacy despite their dwindling wealth, warning him against seeking aid from their relatives, the Pendarrels. This pivotal moment instills in Randolph a sense of pride and duty, while a looming curse of poverty is cast upon him. After their father's death, Randolph and his sister, Helen, set out for London in search of opportunities to restore their family's standing. As they embark on this journey, they confront the challenges of ambition, societal expectations, and personal sacrifice. Their departure signals a turning point, as they must navigate the complexities of pride, familial duty, and social status in a rapidly changing world. It sets the stage for an exploration of how the Trevethlan siblings cope with their ambitions while staying true to their family's values, in a story that unfolds amidst historical and personal trials.