"Well so if you want to come inside, I can open the window for you. We can't really just keep replacing it. I think they might get mad."

As for how, well, her mind stumbles to a halt. The gears are turning but nothing is coming up. Knocking won't help, maybe a flashlight? They had light smoke alarms at home. She ponders it to herself and appears to have forgotten she was supposed to reply to that part. Or look up for Rhia's reply.