The Vestiges of Light is a book by an unknown scholar written in an unknown tongue. Those who have seen a copy and managed to decipher portions of it claim it speaks of gods and powers who have long since vanished from the cosmos, remaining as nothing but a vestige of their former glory.
The powers reputed to be mentioned are:
Ananke, goddess of water, and stars.
Marduk, god of cities and storms.
Seker, god of light and strength.
Thoth, god of knowledge.
Celestian, god of stars and travel.
Nepthys, goddess of death and journeys.