We get snippets, and I think it's terribly important, because it seems some of them are contradictory.

1) Lea's involved . . somehow . .such that he knew she was his godmother but didn't question why she didn't adopt him, or finds out she's his godmother.
2) There's a memory of coming back and finding Elaine entranced
3) But there's another memory of Elaine in funky makeup giving him something weird to drink
4) He fled, and then returned, to Justin's.

A few ideas I have I want to get some details on:

1) Is Nemesis somehow bloodborne as a vector? Is that what they were feeding him? Is that part of being Starborn- a Nemesis-infected woman births a child with immunity? Or with Outsider powers from their "Outsider daddy?"
2) Was Elaine already with DuMorne when he adopted Harry? Could she actually be the original vector that infected DuMorne?
3) How does he reconcile his time in foster care with Lea being his godmother- a god parent, in the oldest sense, is the designated caretaker/parent if/when the parents die.