"Oh, is he?" Magnus looks genuinely interested in this, as it's not in him to resist a party of any sort, but especially not a ball. Especially not one thrown by a High King.

"And you're in charge of the invitations?" He's teasing now, as he doesn't know her rank or her place in this kingdom, except that everyone knows her.

What he knows is: you can't leave a lady like this standing beside you without offering your arm to her.