From the publisher's website:
The famous concubines of Sothis, recently returned to Osirion by the Pathfinder Society, are stolen from the Pathfinder Lodge in that nation's capital and it's up to you to find them and return them before their combined power can be used to awaken an ancient evil.
The Faithless Dead is the fourth and final scenario in the Echoes of the Everwar campaign arc. Part I is Pathfinder Society Scenario #36: Echoes of the Everwar-Part I: The Prisoner of Skull Hill, part II is Pathfinder Society Scenario #42: Echoes of the Everwar-Part II: The Watcher of Ages, and part III is Pathfinder Society Scenario #44: Echoes of the Everwar-Part III: Terror at Whistledown.
A Pathfinder Society Scenario designed for 7th to 11th level characters (Tiers: 7-8, and 10-11)
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.