The Last Candle (OSR) (2013)

From publisher blurb:

The Prieuré de Chaurillon lies isolated in the upper valley of the Satrebonne river. The empire that once protected it has fallen. Barbarian hordes now roam the land. Once tamed borderlands have become infested with monsters and foul beasts. The monks of the Prieuré are all that remain of their ancient order. They stand alone against the darkness of the age; The Last Candle of their faith.

This module provides the Dungeon Master with everything they need to build an entire campaign in the Satrebonne valley; a full-color campaign map of the entire region, wilderness encounters, struggling towns that could benefit from player protection, locations of interest to explore, a fully-detailed priory compound protected by a palisade, descriptions of prominent NPCs, plot hooks to draw the players into the world, unique items to add to your game, a complete dungeon complex to explore, and guidance on how to weave it all together.