PFS Scenario #7-16: Faithless and Forgotten, Part 2

The Society's excavations continue, now taking the PCs to the long-contested territory of Kharijite, Cheliax's southernmost territory, where the great Arch of Aroden bridges the Hespereth Strait and establishes an Avistani foothold in Rahadoum's backyard. There, an ancient Taldan ruin suggests that empire's great Armies of Exploration traveled even farther than believed possible. Can the PCs uncover the site's secrets and in doing so reshape the Inner Sea region's history?