In the hollow center of Round Mountain, the Pathfinder Society's crack team of special agents must navigate the so-called Pagoda of the Rat, where the influential ratfolk of the region hold court. Can they break up negotiations between the ratfolk and the sinister Aspis Consortium, or will the risks taken to reach this point have been in vain? The future of the Pathfinder Society's viability in the region lies in the PCs' hands.
"Pagoda of the Rat" is the second and final scenario in the two-part The Rats of Round Mountain campaign arc. The story begins in Pathfinder Society Scenario #3–20: "The Sundered Path." Both chapters are intended to be played in order and consecutively. PCs who do so will receive a special reward at the arc's conclusion.