Long before madness had a diagnosis, it had consequences. The Unravelling of Mary Reddish takes readers back to Georgian Nottingham, a world where sanity was judged through gender, reputation, and a strict social order. Katie Barr speaks to the author of the novel – David Whitfield – who drew on real asylum records from Nottingham to show how quickly a life can be unmade once those in power decide your mind is the problem.