Harry is lying in bed, staring at the Snitch, and then he seems to realize something.
He puts the Snitch on his mouth, and suddenly writing appears on it. It says: "I OPEN AT THE CLOSE."
You see, Snitches have something called "flesh" memories, and so it only responded to Harry's mouth—because when Harry first caught it, he actually almost swallowed it.
He shares the news with Hermione, who says she's found something, too: A symbol drawn into the book the Dumbledore left her. It's the same symbol that Luna's dad was wearing at Fleur and Bill's wedding.
Not that they know what the symbol means, but perhaps it's important, since it keeps popping up.
Harry says that he wants to go to Godric's Hollow, and Hermione agrees.