[Billy keeps one hand out, determined not to lose or give up here, not when he was so very close. But... how would he know? He can't use magic, it's Loki's head so it wouldn't work here. But it's his subconscious, and...

...would Loki's magic work? He's not certain, and he could be taking a huge risk if it doesn't work, but he doesn't know how else to prove his own identity. If this becomes a battle of her word versus his own, he's not sure he can win.]

It isn't real. That's the problem. But I think... I might be able to prove it.

[Reaching down, he unhooks the top of a pouch at his belt, and pulls out a dagger. The one Loki had given him, in fact. Frigga's.]

Do you still have your ward on me, Loki? It'd tell you if I got hurt, right? The real me?