Is Erebus even... human?
So I have been thinking about this for a while now. I would like to talk about it with some other word bearers.
From what we know from his origin story, Erebus kind of just 'appears'. His origin story is a cuckoo stealing identity spiel, and it's not fully explained what the real individual who steals the identity of this Erebus is/was beforehand.
Erebus seems to constantly know how to play the bigger picture even though he is supposed to be a 'mere' astartes.
Is it possible that Erebus is some metafysically trancendant demon instead? A messiah of Tzeench, or a conduit for chaos regardless of his alligiance? Could it be he was sent specifically to bring forth chaos not as a human, but as a demon?
I have only read First Heretic and Betrayer, Lorgar's own Primarch book, and the first 5 HH books.
I'm curious to what you guys think.