Ghosts Be Gone! (Original)

The halls of the Great Palace have been abandoned for years. . . or so everyone thought.  Thanks to an incident involving an unfortunate crew of paranormal explorers, it has now become very clear that the castle is very haunted.  Dark spirits roam the halls as far as the eye can see. 

It’s now up to you to exorcise them, clearing the evil from the Palace.  But watch out - being this close to so much evil is draining.  You must remove these spirits before you become one of them. . .