The Fallen
Extinguished stars which once lit the heavens with the gods of humanity, now turned dark and malign. The cause is unknown, and subject of heated theological debate. A persistent theory that the stars' fall may be related to the pact of gods and humans and the founding of the church, one way or the other, is invariably dismissed with the anger only a nagging suspicion can provoke.
As their former comrades seek to fill Heaven with light and one day eliminate all darkness on Earth, so do the fallen build an anti-Heaven without light, hope, or struggle. In principle, the church advocates truth and opposes the erasure of knowledge, even harsh knowledge, leaving it vulnerable to heresy that preaches ignorance. Where light can burn, the darkness soothes.
Gloaming Star Hesperus
The two-faced star of dawn and dusk, foremost among the fallen. Once, they were the most august star in Heaven, the only who could share the sky with Queen Sunna at dusk and dawn, who heralded the day and held the night back. But the First to Fall now radiates only darkness, hastening the fall of night and prolonging its stay.
When aspiration turns into envy and ambition into lust for power, Gloaming Star Hesperus watches and offers power. The only cost is that one spread the darkness in one's own heart, and continue to do so after death. To observe that this mirrors the pact of the gods with humanity is the greatest blasphemy known to the church.