"The Lie Tree" is a novel by Frances Hardinge that follows the story of Faith Sunderly, a young girl in Victorian England. After her father's mysterious death, Faith discovers a tree that thrives on lies. The more significant the lie, the more the tree flourishes, revealing hidden truths and secrets. As Faith navigates her father's legacy and societal expectations, she grapples with themes of truth, deception, and the role of women in her time. The story intertwines elements of science, faith, and family, ultimately leading Faith to confront her own beliefs and the nature of reality.