Young Arabella Buckley secures a coveted role as literary assistant to renowned geologist Sir Charles Lyell. As Arabella's scientific prowess grows, she captures the attention of the influential minds of her time, including the enigmatic Charles Darwin himself. Despite prevailing notions of female inferiority, Arabella's talents transcend gender farriers, forging a unique friendship and collaboration with Darwin. Together, they revolutionalized the scientific world by translating Darwin's groundbreaking theories into captivating books that unravel the mysteries of science for all to understand.

Yet, while her work life soars, Arabella's personal life is far from smooth sailing. A clandestine affair with a married doctor, a move to the countryside bringing unforeseen challenges, and a bitter rival all seek to undermine her life and her work. Undeterred, Arabella's resilience drive her forward after suffering profound losses. Will she find the strength to discover herself, pioneer her own path, and complete her life's mission?