Because of the Locust King and the Hungry Empire, people are always dying of starvation. The bones of these dead, human and otherwise, sink into the earth and drip through the layers that separate the other realms until they reach the Painted Labyrinth.
Here in the darkest parts of the Painted labyrinth exist the ancient Primordial gods. Preceded in the history of Godly Evolution by the Nameless Gods and Legion itself, these ancient gods have lost their conscious followers, but are unable to die because they are so primal in their personae that most people are unable to completely disbelieve in their existence. As such they steal what scraps of offerings they can from the corpses of those who have died of starvation- making prayers in vain to anything that will listen.
Should a Psychonaut stumble onto the altar of one of these vicious prehistoric Gods, they will attempt to enslave or consume the Psychonaut, frequently forming a vaguely human skeletal body from the masses of bones that have dripped like melted wax into their lairs.
Defeating or confounding the Starving Gods may put them in a bargaining mood, but Psychonauts should be warned of the dangers of attempting to appease a being a desperate as one that is starving but unable to truly die.
