Wait, St. Mungo's? Blimey, I don't care how it happened, I'm just glad you're here!
It is, isn't it? Ginny was here, but she... she disappeared recently. Same with Hermione. People can vanish just as fast as they show up.
Not everyone's young. Remus and Sirius, there are two versions of them, the older ones are here too. At least, I think they're still here. And Ron's older than you now, isn't he? He's loads older than me.