I dunno... my guess is still ghosts. Maybe they're mad, maybe they're sad, maybe there's just something they want to hear - something you never got the chance to say, before they died.

[ He thinks about Noelle and Maureen, the first of which who just wants to continue on fighting against that which caused her death, Maureen, who just wants to keep her son safe. All of the dead have left something behind, something they still want to hear, or do. ]

It must be something you've already thought of, but if you wanted to tell her something? I'd say this is your chance.