The Penumbral Accords (2010)

From the publisher's website:

The daughters of Absalom's mysterious Blakros family have long been among the most pursued maidens in the Inner Sea. Now the family's matriarch approaches the Pathfinder Society to help her break a centuries-old pact with the denizens of the Plane of Shadow to save her twin daughters from a life of servitude at the hands of the Onyx Alliance. Heading into the fan-favorite adventuring location of Blakros Museum, the PCs have only a short amount of time to break the Penumbral Accords and solidify the Pathfinder Society's ties to the powerful Blakroses.

A Pathfinder Society Scenario designed for 1st to 5th level characters (Tiers: 1-2, 4-5).

This scenario is designed for play in Pathfinder Society Organized Play, but can easily be adapted for use with any world. This scenario is compliant with the Open Game License (OGL) and is suitable for use with the Pathfinder Roleplaying Game.