Early? Olly was not usually early to things. It seemed more likely to him that the grey lady/ghost professor was just late. And she didn't want to admit it. And THEN she was asking him why he was so far back when it had been her fault the lights weren't on so he couldn't really see where he was going. That was kind of rude. And he was not going to move closer to the front thank you very much.

But he would answer her question. It seemed easy enough so Olly raised his hand. "A ghost is someone who died but their spirit is back. Not like a zombie or an inferi though, they don't have a body. You can see through them. And they still maintain full brain power. Why was she asking them? She was literally a ghost. "And they maintain all of their beauty." Cue smile.