All Which is Forgotten (2004)

A One-Round Living Greyhawk Theocracy of the Pale Regional Adventure

From the introduction:

An army gathers and a battle looms on the eastern border of the Pale. Yet, rather than join in the battle, you are asked to recover treasure stolen from the Library of Antigua. It is commonly known that no thief has successfully absconded with a relic from that vault, where it is said the Theocracy stores dangerous and perhaps even evil artifacts for study and safeguarding. The treasure is now in the hands of a wizard named Konrad Huber. Chapter Six and the conclusion of Germinations. Unlike most chapters, it’s recommended you play the previous chapters before playing this one.

An adventure for Average Party Levels 2 through 12.