“Undetectable Extension Charm,” said Hermione. “Tricky, but I think I’ve done it okay; anyway, I managed to fit everything we need in here.” She gave the fragile-looking bag a little shake and it echoed like a cargo hold as a number of heavy objects rolled around inside it. “Oh, damn, that’ll be the books,” she said, peering into it, “and I had them all stacked by subject. . . . Oh well. . . . Harry, you’d better take the Invisibility Cloak. Ron, hurry up and change. . . .”
Lol
