From publisher blurb:
A Pathfinder Society Scenario designed for levels 5-9.
When an impossibly vile fiend proves too powerful to destroy, the forces of good often resort to banishing or sealing the villain away to be remembered only in fearsome legends. Less common are the instances in which wrongdoers bound benevolent titans and demigods, yet Society agents recently uncovered just such a prison. Few know how to unlock such a jail, much less locate the key. The Society has identified just such a sage: a disgraced efreeti who has sworn to share her priceless knowledge in exchange for the PCs' assistance. The Pathfinders travel to the cosmopolitan melting pot of Zjarra on the Plane of Fire, where they must fulfill the cruel genie's schemes—or find some other way to fulfill the deal.
Content in The Cindersworn Pact also contributes directly to the ongoing storyline of the Exchange faction.