Grimstone Keep was, in times of old, the last redoubt of the people of Glimspire in times of desperation. The dwarves would retreat along belowground ways to the keep, which was thought to be unbreachable. Tragically, the keep was lost to the forces of darkness, led by the Drow, 25 years past. The tunnel is blockaded and guarded by powerful Deepwardens, and passage through is forbidden. Recently the dwarven missionary Gram Delvefoot traveled to the keep to search for a relic of Moradin which was rumored to have appeared there.