No worries, mate. I'm thinking the point of this group won't be to learn new hexes but to plan and practise things we already know. So that we can react in a coordinated way if we have to.

They agreed to join.

They're not in Dark Arts, though. Padma agrees that the two of us should meet with her and some of the other Ravenclaws in Dark Arts to talk through some plans in case things go wrong there.