According to Sister Providence, the Order of the Locked Gate was founded to keep ancient beings known as the Old Dawn Guard from our plane. Cast off into Limbo, there ancient ones are a danger to our world, and powerful in the sway they hold. Capable of sending creatures into the world when summoned, or where they have enough power, these unnameable beings were kept in check by the Locks and the Order of the Locked Gate who would track down Gates into the world and lock them.
As of a recent disaster, the Order and its Library were cast off into Limbo in a freak accident, rendering Sister Providence the last Gatekeeper, and her meagre selection of books on the Old Dawn Guard the best source of information.
Some information about the Old Dawn Guard has come to light.
Said by Sister Providence to be an Evil being associated with trickery, this being was associated with the Hellhounds that were summoned into Angelfall.
The god of dragons, Bahamut appears to be included in those trapped in Limbo
Brutish chaotic evil demon king