"The Lieutenant" is a historical novel by Kate Grenville that explores the life of a young British officer, Daniel Rooke, in the early 19th century. Set in Australia, the story delves into Rooke's experiences as he navigates the complexities of colonial life, his relationships with the Indigenous people, and his internal struggles with morality and duty. The novel highlights themes of cultural conflict, identity, and the impact of colonization. Rooke's character development reflects his growing awareness of the injustices faced by the Aboriginal Australians, ultimately leading him to question the values of the society he serves.