From the publisher's website:
Pathfinder Society Special designed for Levels 1–11.
The Ruby Phoenix Tournament is nigh, and organizations and individuals throughout the Inner Sea are scrambling to secure a spot in the legendary Tian fighting competition, among them the Pathfinder Society. In an underground qualifier event overseen by an enigmatic old monk and his oni spokesman, the Pathfinders must overcome the opposition to ensure the Society can send representatives to distant Goka to compete in the Ruby Phoenix Tournament itself. Battles will rage and blood will flow under the streets of Absalom, and only the greatest combatants will emerge victorious.
This special is designed for play in Pathfinder Society Organized Play, but can easily be adapted for use with any world. It is a single scenario played by multiple tables simultaneously (minimum 5) and requires one GM per table and an overseer GM to coordinate the entire event. This special is compliant with the Open Game License (OGL) and is suitable for use with the Pathfinder Roleplaying Game.