This has probably been covered, but I'm curious why Bod's birth parents ghosts didn't come back to raise their son, or at least check in on him once or twice. Was this explained in the book and I just missed it? Thanks for any help you could offer.
I think Mrs. Owens mentions something in the first chapter about how the ghosts of Bod's family will wake up again in the place where their bodies are buried. Ghosts can't leave their graveyards, so they can't raise Bod if they are in a distant location unknown to him.