From the publisher's website:
The centaur tribes of the Isle of Kortos have long been an enigma to the people of Absalom. But the Pathfinder Society needs the help of one of the horsemen’s greatest heroes, in it falls to you to negotiate an agreement between the Decemvirate and the centaurs of the plains.
A Pathfinder Society Scenario designed for Levels 7-11.
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.