How do you feel about the presence of Atlantis in Terra? Perhaps the Atlantean Empire of antiquity was also ruled by the Dragon-Blooded, and then struck down by the Olympian Gods for their hubris?

I might propose a "last Atlantean" sort of character, an expatriate of the Imperium, descended from the last surviving bloodline of Atlantean royalty. As the only son of the very last of the Old Dragon-Blood (who resorted to incest to keep their bloodline pure), he is quite literally the last surviving ethnic Atlantean, and seeks to usurp the throne and reclaim the lost empire of his ancestors. Potentially with a sort of secret-society upbringing, similar to Aegon VI.

What do you think?