Theory:Vahl isn't the only one with a Jordan inside her head (theory 1 of 2)

So, Vahl. The kind hearted yet amazingly sinsiter dark elf with what I'll call a Jordan inside of her head. But what if I told you that she isn't the only one with a Jordan inside her head. See in a Skyrim episode she encounters a madman. He says when he looked inside of a black book, a voice appeared and started to talk to him in his head. Could this be one of Vahls kind? Could she be not the only one with a Jordan. But something interesting, he says it came from a black book. Is Jordan in the skyrim series possibly a seeker or a sevant of Hermaeus Mora? Or is he a spirit that dies within the black book and got switcharooed Detective Pikachu Style. Im working on that theory too and looking for clues. Give me help in the comments if you find any proof.