From the publisher's website:
When a newly opened Ustalav Pathfinder Lodge goes silent, it's up to you to investigate and report back to the Society as to the source of the disappearance. The mystery deepens when you arrive and find the house silent but infiltrated by an old threat now in control of one of Ustalav's most powerful artifacts.
A Pathfinder Society Scenario designed for 1st to 5th level characters (Tiers: 1-2 and 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.