Keystone
From Nightmist wiki
Description: What looks like a regular rock has turned out to be something special. From the looks of the small rune etched into this stone, it most likely provides access to somewhere, much like a regular key., Type of Item: Doesn't do anything special, or is a key.
Rarity: 
General
- Dropped by Gnoll Captain in the Gnoll Fortress.
- Used to gain access into the dungeon beneath the Gnoll Fortress.
