Some sort of aura, perhaps- his mind races even as his heart pounds. Is this how a caged beast feels? He has far more sympathy for them, now, even as he holds on to his composure and as blank a face as he can. Though he does tilt his head in thanks as he accepts the tumbler, taking a slow drink of it (poisoned, could be- they wouldn't waste this much effort) to wet his dry throat and give him further time to think.

Breathe.

He does so, fight-flight-freeze instincts still warring with each other. But when he is done with the water, he at least has his next test ready;

"Before we continue, would there be a copy of your inter dimensional law able to be provided so that I may understand the full rights granted to me under its jurisdiction?"