A One-Round Living Greyhawk Principality of Ulek Regional Adventure
From the introduction:
A tremor, a misstep and a plunge … you find yourself in a place long forgotten, drenched in darkness. Will you turn from this course, or will your adventurer's heart compel you? What knowledge lies beneath the book of Dugmaren Brightmantle?
A Principality of Ulek regional adventure for APLs 2-12, and Part One of the Soul of a Nation series.
Note: This adventure will be of particular interest to PC worshippers of the Dwarven Pantheon.