From the introduction:
The ancient city of Stormhold has been under siege for nearly 6 months by a vicious horde of orcs, goblins, ogres and other demi-‐humans calling themselves the Legion of Koranth. Whatever power has bound these wretched creatures together has set its gaze on the lonely city, located high in the Shivering Peaks. In the city’s nearly 8000 year history, it has been besieged, sacked, razed and conquered again and again, but it has also cast down countless would be conquerors too.
For 4th - 5th level characters