The One That Devours All in the Dark

Surreal's Patroness. She's the favorite daughter of a death god. And she's creepy.

Thousands of years ago, mass murder was its calling card. She's a lesser goddess of death. She was sealed away by an unknown force, said to be a ritual performed by a group of "mortals". To be freed, she would have to cause a huge disruption.

We know that there have been small arcane ripples, and Surreal is probably trying to reverse engineer the seal rather than break it.