The Vile Star Storyline (OSR)

From publisher blurb: The Duchy of Ashlar is small and constrained. Always, the forces of evil and shadow press inwards upon its borders. If it were not for a stout few, death and darkness would have long ago overwhelmed the land. Dunstone was once Ashlar's northern bulwark. Now, it is a dangerously sleepy and insular place. Wicked humanoids yet lurk in the dark forests and deep valleys of the surrounding hills. Abandoned mines and crumbled ruins stud the surrounds, calling with their siren song to bold adventurers. To the west, lies the time-worn, oft-cursed ruin of the ancient Nameless Monastery. Not all dangers lurk without, though. Folk—both fair and foul—have plans for Dunstone. Change is coming, to the Town on the Borderlands.