This adventure was distributed on Game Day 2007 as a promotional adventure. The adventure is designed for a group of 4th-level characters.
From the introduction...
Frostsilver was abandoned centuries ago by the Frostsilver clan of dwarves and lost to history, but with an ancient map discovered in their last adventure the PCs might be able to find it and restore the dwarven clan-home to its former glory. It has been generations since any dwarf has laid eyes on the place. What might now live there and how far has it fallen?