The sins of the father passed down 4 generations.
An old cult has been hiding in the shadows, and it's time for the old families to make their sacrifices.
Although, how she gave birth to the little girl and then Archer I'm not sure.
She would have to be WELL over 140 yrs old.
Maybe I missed something.
Whatever this thing is it seems to just periodically show up somewhere in the world to entertain itself.