I'm more interested in the similarities in ID harry and Thomas's demon. I think it was Odin or Uriel who said that the white court were scions, but I think because they both provide, or at least influence emotions, have a separate personality, and offer a perspective that harry and Thomas would be unable to see alone, provides unusual similarity. Moreover, Molly spoke to the ID when helping with the air spirits delivery. That could suggest a second entity, as unconscious people would not have any instincts, emotions, or otherwise to indicate the presence of an ID. Unconscious itself seems to mean no regular or subconscious action. I think if we work from Thomas's short story, and the WC are scions, a regular scion would have two entities in the same body. Bodies of mortals, subconscious similar to the original supernatural ancestor, and a unique personality to the main entity. This would lend to the theory that humans are scions of the white god, or that wizards get magic from supernatural ancestry. Disregarding the white court as scions, we know that harries subconscious is different, because molly could talk to it to deliver the spirit, but we saw multiple Mollys of all of her aspects in Ghost Story. ID even admits he has trouble with regular jobs of subconsciousness aspects.which could lead to the conclusion that Harry is different, and the main thing that makes harry different in major aspects in the series is because he is a starborn, so it could have something to do with that.
Not sure why you've spoilerized ...? This IS the
Spoilers thread!
Anyhow...
I think you're recalling Uriel's remarks at the end of Ghost Story -- Thomas is a "scion" (offspring of mortal and immortal) as the son of Papa Raith (immortal) and Mama Maggie (mortal).
I don't know that we can generalize this to all Whamps-as-scions, though. My sense is that both parents can be Whamps... but I admit I don't actually recall this as set in canon, either way.
It's also possible that all-Whamps-are-scions no matter the parentage, simply because their bodies are Human (q.v. interfertile with Humans) but their Demons are
not. There are both elements in the offspring; they are a child of both human and hunger-demon parentage, regardless of whether both (or only one) parents were Whamps.
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As Molly was "delivering" Bonea, she spoke with id-Harry, yes; but note that sleep-walking and sleep-talking are both well-known phenomena, dreams and lucid-dreaming, etc etc etc. A mind-mage of Molly's caliber can almost certainly have induced whatever state of mental awareness she needed Harry to be in... I don't see any evidence that id-Harry is actually a separate/external individual.
Indeed, the fact that id-Harry wears a snowflake (when Harry-Prime becomes WK) strongly indicates that they are fundamentally the same being.
