Forgotten Keep

The so-called Forgotten Keep was a ruined Netherese lookout tower in the Helmlands of Cormyr.

Location
The Forgotten Keep stood to the northeast from the town of Eveningstar and the Eveningstar Gorge, east of the Starwater River. The area was also known as southern Stonelands – sparsely-wooded Cormyrean wilderness crossed with deep stream-gullies and ravines.

Structure
The true name of the "Forgotten Keep" was not known. The only thing that was left of the structure by the 14 century DR was its round walls. The lookout tower's shell included a simple dwelling. Both were erected over a subterranean gate within a natural cavern that also served as a source of drinking water, refilling every spring.

Inhabitants
By the 14 century DR, the Forgotten Keep had been long abandoned and used as a lair by beasts and monsters alike. Bears and owlbears were known to make the ruins their home, and its cellars hid a gibbering mouther that once belonged to the wizard-master of the keep. The aberration was just one of the keep's many defenders, altered by that unnamed wizard. The gibbering mouther was granted spell-like abilities allowing it to use the underground gate to travel to new feeding spots.