The Cult of Abyss

The Cult of Abyss is a faction located in Aquastria, and they are led by their Prophet Viriathus. They are the ruling faction of the Deep Sea Changelings. They are far removed from the rest of the undersea ponies, and tend to keep to themselves whenever possible. They tolerate the existence of other races, but generally regard them as uncivilized heathens, and only maintain diplomatic relations for their own benefit.

Abyss
The Deep Sea Changelings worship a mysterious deity known as Abyss. No one knows exactly what Abyss is, or It's true motivations, though some scholars believe It may be of alien origin. It is seen as benevolent by the Deep Sea Changelings, though It is generally thought of as malevolent by outsiders. It is said to reside in places no light has ever touched, and It's presence twists the bodies and minds of most species. It is for this reason that many deep sea creatures are quite alien in appearance, and highly aggressive.

The Deep Sea Changelings follow the tenets given to them by Abyss, who speaks only to the current Prophet. Though some others can hear It's whispering, they are usually in the Old Tongue, which only the chosen Prophet can understand.