Source: Into the Darklands, pg(s). 41
The skum of Cold Momugado revere it as a god. The drow and ghouls of Sekamina think it might be a very ancient alghollthu master, left behind when its kin abandoned the region many millennia ago, but others speculate that it could be something even more alien, such as a mother of oblivion or a previously undocumented Spawn of Rovagug. Visitors to the city only describe a horrific, tentacled mass, and cannot agree on its exact nature.