A One-Round Living Greyhawk Principality of Ulek Regional Adventure
From the introduction:
Unable to make sense of a mithral-bound tome, the scholars of the land ask you to seek another for answers. But in Ulek, who can you turn to when even the eldest of dwarves are at a loss?
A Principality of Ulek regional adventure for APLs 2-12, and Part 2 of the Soul of a Nation series.