[For a while, there's nothing but the echoing booms of the fireworks overhead as Ginny leans against the outside wall of the club and watches the sky. She wonders if Fred knows, really knows, about the castle. She didn't tell them much over Christmas, she didn't want to risk her parents forcing her to stay home (though that happened anyway, over Easter).
voice;
And then she laughs.]
What makes you say that?