Walled in Light: The Life of St. Colette is a biography of Saint Colette of Corbie, written by Mother Mary Francis, P.C.C. It tells the life story of Saint Colette, a 15th-century nun who led the reformation of the Poor Clares amidst the turmoil of the Catholic Church (the Western Schism and the Hundred Years' War). The narrative, encompassing Colette's miraculous life and her ability to overcome temptations with humility and trust in God, is written in a factual yet sweet style, making it an inspiring biography of one of the most important saints in Church history.