While the lives of most Pathfinder Society field agents is brutal and short, some rise to prominence, drawing the attention of the Decemvirate. These lucky agents are invited to a little known siege castle outside Absalom where they are asked to test their mettle. Those who succeed get their choice of prestigious missions, whereas those who fail are rarely heard from again. The players are run through an arena-style dungeon, faced with monsters, traps, and puzzles.