Ron swallows hard and pushes himself up, looking around completely bewildered. Right. Do something, he can do something. He pulls his wand out when he sees hers, and - well. Destroying his friends' hideout? Is that what they think it's like, where they come from?

He wets his lips and squares his shoulders, and it's like - like Dumbledore's Army again, only it feels more like a kid's club, now. Which is stupid, he's not even the oldest one here.

Tallest, probably.

"All right then," he says, and well, he doesn't want to send her flying or anything, so-- "Expecto Patronum!" He flicks his wand just right, and he doesn't have the experience Harry does, but he does have experience. Out pops a silvery Jack Russel terrier that promptly runs a circle around him, then tries to bounce off her.