Road to Aster (HackMaster 4th edition RPG) by Dan Fobes

There is a valley few know about and even fewer have ever been to. Once, it was a place where hermits and powerful magic-users went in search of solitude. It was once a place of wonder and beauty beyond the imagination. Yet, something has happened recently, and it has not been good. Dark armies are said to be on the move now from somewhere deep within the valley, perhaps from the citadel of Aster. The only way to find out is to enter this desolate place and explore the town of Rumarok, which sits just at the head of the valley. Like the Valley itself, Rumarok was once a cheery place, though it too seems to have fallen into misfortune. What possible things lie in wait for the careless or the curious to come about? There is only one way to find out. Dare you enter the Valley and walk the Road to Aster? If so, you must prepare yourself, my friend. You are about to embark on a journey into a land where magic and monsters lurk in every darkened corner. This is not a place for the meek spirited or the wuss of heart. The Aldrazar™ campaign setting is a land embroiled in an epic struggle that has raged for countless eons: where the forces of evil war against those of good, where law struggles to keep chaos in check, where adventure and the art of hack are the meat and drink of all who would seek to carve their niche in such a hostile, forbidding and unforgiving environment. This is the realm of the HackMaster™ role-playing game. For characters of 5th to 7th level.