House of Diamonds, or, Treasure of the Axcelon Mine

Publisher's blurb: New allies in the Underdark have emerged and are working to liberate drow-taken slaves from around the Moonsea. Key to this endeavor is finding a safe and secret passage between the Underdark and the surface. Rumors tell of such a passage deep within the abandoned Axcelon Diamond Mine. Yet the passage is the least of the treasures and dangers that the mine holds. A Two- to Four-Hour Adventure for Tier 2 Characters. Optimized for APL 8.