'Wieland; Or, The Transformation: An American Tale' is a novel written by Charles Brockden Brown. Set in the late 18th century, the story revolves around the Wieland family, residing in a rural Pennsylvania community. The protagonist, Clara Wieland, narrates the events that unfold within her family. The novel explores themes of religious fanaticism, psychological instability, and the limits of reason. The Wieland family becomes entangled in a series of mysterious and tragic events, starting with the sudden death of Clara's father. The central figure in the novel is Theodore Wieland, Clara's brother, who becomes convinced that he is receiving divine messages and is called upon to commit terrible acts. The story delves into the dark recesses of the human psyche, exploring the nature of religious fervor and its potentially destructive outcomes. Brown's novel is regarded as one of the earliest examples of American Gothic fiction and a significant contribution to early American literature.