From the Introduction (S&W Version):
Fane of the Fallen is an adventure for use with the Swords & Wizardry Complete Rules, that embroils the adventurers in the events which take place when a demon princess makes unexpected promises, in an isolated outpost of Chaos. The rippling effect of these promises is a seismic undercurrent of hopes, deceit, and slaughter. The characters will fight and trick their way toward the very heart of these events, and confront the deadly perils involved when power changes hands in the bastions of Chaos.
Fane of the Fallen is designed to be used with the area map contained in this adventure, but the towns and other places presented herein can easily be replaced by areas in your own campaign.
Fane of the Fallen is designed for adventuring parties of approximately 9th-12th level. Well-balanced parties are the likeliest to succeed, as this adventure frequently calls for a variety of talents.
Adventure produced by Frog God games in a Swords & Wizardry and a Pathfinder version.
see Fane of the Fallen (Pathfinder)