The story recalls the fall and redemption of mankind under the guise of a beseiged city. The city of Mansoul originally belonged by right to Shaddai or God, but was betrayed through Ear Gate and Eye Gate into the hands of Diabolus or the Devil, a besieging giant who takes control. In the hands of the enemy, Mansoul loses its Major, Lord Understanding, and Mr. Conscience is dismissed from his post of Recorder. Lord Will-be-Will becomes the Lord of Mansoul--man's fallen will, selfwill, and ill-will all combined in one unpleasant and anti-God character. Mansoul is recaptured by Emmanuel's army and Diabolus is driven out. There is triumph over sin and evil.
