I don't know much about Chelsea Abbott, except that something happened between her and Marlon Strangeweale and Judith Starling during yesterday's YPL activities?

Remy says that everyone's rolling their eyes because Marlon's been in the common room all night moaning about a head injury, even though the Matron has already treated him. So I'm guessing it was some kind of fight or duel. Maybe Chelsea has injuries, too?