From the back of the book:
Storm the Lost Tower!
The ruined siege castles outside Absalom have long beckoned adventurers looking to make a name for themselves. Now an earthquake has cracked open one of these fabled ruins, and its lost mysteries and fantastic treasures lie exposed for the first time in centuries. But the tower's empty halls once more echo with living footfalls, and a new master has claimed the Fallen Fortress as his own. Can the PCs find a way to get inside its shattered walls? What ancient dangers and fresh threats will they encounter inside its crumbling chambers? And will the PCs be able to defeat the current Master of the Fallen Fortress?
Master of the Fallen Fortress is a dungeon-based adventure for 1st-level chararacters, written for the Pathfinder Roleplaying Game and compatible with the 3.5 edition of the world's oldest RPG. It also serves as an introduction to Pathfinder Society Organized Play (Paizo's constantly evolving, world-wide mega-campaign). The adventure involves exploring an ancient, ruined tower and rescuing the captured Pathfinder held within.
This adventure is set outside the great city of Absalom in the Pathfinder Chronicles campaign setting, but can be easily adapted for any game world. It also contains a preview of the six new iconic characters from the upcoming Pathfinder Roleplaying Game Advanced Player’s Guide, available August 2010.