This essay examines Charles Brockden Brown's Wieland, or The Transformation (1798) as engaging with the distinctive “secular age” of the early republic, a volatile moment in American cultural history when such experiences as having visions and hearing voices, both prevalent in the novel, drew an array of religious and medical explanations. Drawing upon the work of theorists of new secular studies, I argue that the doubts of the novel's narrator Clara regarding who or what is responsible for her family's undoing signal the difficulty of storytelling in an age of spiritual and intellectual uncertainty. By thus reading Clara's indeterminacy as a reaction to the contrapuntal religious and medical discourses of the early republic, my essay offers new insight into the significance of her rhetorically strained, inconclusive attempt at rendering a didactic narrative. Rather than offering Clara merely as a negative example for readers – a victim of her own imperfect discipline, as she herself assesses – Brown utilizes her self-proclaimed failure to ironize the self-assuredness of eighteenth-century didactic novels in an age rife with doubt.