The Pilgrim's Progress by John Bunyan is an allegory of Christian salvation, following Christian’s journey from the City of Destruction to the Celestial City.
Adrift at sea with a man who claims to be God, a group of survivors must confront faith, guilt, and the hope of salvation in the face of the unimaginable.
St. Francis of Assisi by G.K. Chesterton portrays Francis as a revolutionary figure whose devotion to faith transformed medieval thought and spirituality.