Extremely entertaining to watch my players pick up on the breadcrumbs I've left for them and start to fit the pieces together that something is really, really wrong with the campaign setting.
So, to give a like, brief overview of the campaign; the PCs have been adventuring together for a little over three years (with a timeskip separated in the middle). They're opposed by an ancient from the race of precursors, known as the Sorcerer-Kings, Kynnir, or Kyngnir, who, because of their own actions, was restored to life and full power-
And stole the body of the wizard's brother as a vessel. He is now resurrecting and sending their old foes after them while enacting his plan, which he explained as "Reunite the legacy of the imperator, murder the gods, and topple their thrones, to undo the great injustice that was done to us all."
Now my players have been like, putting together a bunch of metaphysics crumbs that I've been leaving down, like the fact that they and prominent NPCs fit into elemental duos, or that the Kyngnir were very fond of using pocket dimensions
For reference to names: Hrafn is the aforementioned sorcerer-king who is the BBEG, Divya is the God of Death and the God of Fate who is the patron to the party's Champion, Nightsky is the God of Nature and the Stars, who is popularly depicted as Divya's consort.
Anaximander is the God of Murder, who holds a yearly masquerade ball in a pocket dimension, essentially for assassins to network, Narsethuul is a being from another reality, trapped in the plane of shadows, that is using the party's Oracle to be brought fully into this world in order to fully escape.