Pathfinder RPG: Agents of Edgewatch - Ruins of the Radiant Siege 2nd Edition

Just as the Edgewatch agents discover the identity of the final member of the Twilight Four, their investigation reaches a fever pitch. The Radian Festival's stolen giant excavator, Graveraker, makes its gran reappearance by stampeding across the fairgrounds and threatening everything in its path. Meanwhile, the agents must locate the ket to taking down the newly ascended evil primarch in the ruins of an ancient siege castle. The Agents of Edgewatch Adventure Path concludes with "Ruins of the Radiant Siege," a complete adventure for the 18th-20th level characters.