The Flame of Chaos is a force in Dark Souls.
The Flame of Chaos was created by the Witch of Izalith when she attempted to use her Lord Soul to recreate the First Flame. When she was unable to control it, she was consumed by it and transformed into the Bed of Chaos, mother of all demons. Her children were similarly consumed and transformed into monstrosities. Her daughter Quelana however escaped, and used the Flame of Chaos to create the art of Pyromancy.