From the PDF Introduction
A web enhancement for Races of Stone
Despite their majesty and beauty, mountains can prove deadly and unforgiving, and not just for casual visitors. Even natives succumb to the dangers presented by such terrain from time to time. This adventure, which is designed for a party of 9th-level characters, shows the perils that even the best-prepared denizens of the mountains can face.
Raiders of the High Citadel is a short D&D adventure for four 9th-level player characters (PCs). It takes place in and around a mountain dwarf stronghold called Durimek and involves goliaths-the new race introduced in Races of Stone. As always, feel free to adapt the material presented here as you see fit to make it work with your campaign.