That’s what ghosts really are, Aint Melusine had said, the past refusing to be forgot. She’d been helping Aster scrub down X deck with ammonia and bleach, a failed attempt to rub out the stink of what had happened there. Ghosts is smells, stains, scars. Everything is ruins. Everything is a clue. It wants you to know its story. Ancestors are everywhere if you are looking.