The Dark Six are the shadows of the Sovereign Host. These dark gods shape the world and are present at all times, speaking to those willing to hear them. Where the Sovereigns govern positive forces, the Dark Six are the source of fears. Arawai and Balinor reflect the positive aspects of nature. The devastating storm, the earthquake, the wildfire? These are the work of the Devourer.
The Dark Six and the Sovereign Host are opposite sides of the same coin. If you believe in one, you acknowledge the existence of the other. The only question is whether you fear the Six or revere them. Those who choose to follow these sinister deities embrace the darkness. A barbarian may thank the Fury for the gift of rage. An assassin walks the path of the Mockery, while a warlock's pact may be a gift of the Shadow.
The Dark Six inspire worship in different ways among diverse cultures. Temples to the Dark Six appear in Droaam, along with wild revels driven by the Fury. The Dark Six aren't worshipped openly elsewhere in Khorvaire; the gods' shrines are hidden, and it's more common to find a cult devoted to a single member of the Six than a temple dedicated to the entire pantheon.