[Billy resists the urge to snap at that; as nice a kid as Loki can be (if confusing), he can be pretty frustrating, too. And he really has been trying to keep the magic lessons a secret as best as he can, since he really does feel that it's no one's business. Loki's insistence is both alarming and headache-inducing.

He'd rather not cause some sort of fight, that's all.]

Aren't you the one with the selective hearing, here? I already told you over and over that I don't have a master. What's made you so convinced that I do?

[Has something given him away, or is Loki just making assumptions? Because if it's the former, then it's something to work on, clearly.]