I think there’s a hint in the conversation recorded in comics #2029 through #2057 (2011, June 7 through July 15). What exactly that hint means, I’m not sure yet.
Not necessarily a tulpa of Dumuzi. Perhaps one of those in whose minds Dumuzi planted ideas. Perhaps even one to whom he “spoke”, when he was still able to do that.
(Middle panel, Amara-Sin’s bubble. “She knew all kinds of things she shouldn’t have know” — should probably be “She knew all kinds of things she shouldn’t have known“)
Hmm, that third panel makes me wonder if the “don’t investigate ruins” unconscious prohibition was set up way back then. What other reason could there be for the lack of archaeology in the people that arrived with The Mariner.
That would make her older than the 1st Mariner, by a whole lot!