Share your DARKEST headcanons?

(Flared NSFW for safety.)

Mine: Daddy Vestra is an Agarthan. Almost everyone in Housr Vestra is an Agarthan actually, and Hubert is half Agarthan half human.

The reason why Hubert is in-the-know on so much Agarthan stuff and hasn't been replaced yet is because he is already seen as one of their own.

The reason why Hubert hates Agrathan's so much is because he want's nothing to do with them and sides with humanity. This is also the real reason why Hubert is so loyal to Edelgard: he couldn't care less that he was born to serve her, he just wants to help her create a world where humanity rules it's self without mole-men and dragon people.