Knights in the Nightmare

An old castle known as Aventheim lay somewhere between heaven and the underworld, in the heart of a peaceful lake. Without notice, inhabitants of the netherworld appeared one night and killed the kingdom, leaving no one alive. A wisp is set loose within an abandoned, long-forgotten chapel deep in the woods. It is pulled to a monster-infested castle and reawakens the spirits of slain knights, guiding them back to the fallen fortress to battle the forces of evil that claimed their lives.