Cauldron Sea

The Cauldron Sea is a geographical feature of northern Blightshore. The sea is perpetually stormy due to a collision of rifts to the Elemental Plane of Water and the Abyss.

Description
The Cauldron Sea is composed of dark, brackish water in a constant state of stormy turmoil, apparently due to the collision of elements of the Abyss and Water Plane. Within the depths of the sea live aquatic monsters, and the area is rumored to contain the ruins of a sunken city and a ship graveyard. The shores of the sea are rocky. Water from the Cauldron Sea is said to induce madness (along with other arcane effects) when consumed.

Along the borders of the sea lie a handful of villages, some welcoming to travelers, others wary of strangers.

Oblivion Vortex
The Oblivion Vortex is an abyssal rift within the Cauldron Sea which is said to be the site where Tharizdun will loose himself upon the Material Plane.