Forsaken Castle

Lily is a newly appointed paladin sent to investigate the appearance of undead near a village. Her search leads her to an old castle that is known to have been long abandoned, but there are lights visible and the drawbridge is closed. Being new to her order, she has a desire to prove herself a capable paladin, thus she decides to find a way into the castle and destroy the source of the undead, but doesn't realize the evil she is ultimately about to face.