For many years, a lone castle has stood on the edge of demonic lands,
a beacon of light holding back a sea of darkness. But now it has
fallen to the fiends who threaten to spread beyond to the civilized
world. The Demon Within is a dungeon adventure for mid-level
characters, compatible with the world's most popular fantasy
roleplaying game, and part of the GameMastery Module line.
GameMastery Modules also include four pre-made characters so players
can jump right into the action and full-color maps and handouts to
enhance play.