The Sandstone Secret

Publisher's blurb: A Pathfinder Society Quest designed for levels 1–4 (Subtiers 1–2 and 3–4). When the Pathfinder Society receives word of a promising, unexplored ruin in Osirion, the PCs set out to uncover the site's secrets. Yet upon arriving, the PCs learn that a different group of Pathfinders has already entered the ruins. Has there been some mistake, is the site's magic playing tricks on everyone, or is there something more nefarious afoot?