[He lets her examine his hand. Lets her fingertips brush along where the wound had been just moments before. He counts the seconds -- one, two, three, four -- and then Ardyn will be removing his hand from her grip. He looks up at her with a considering raise of his brow, flexing his fingers out of habit.]

That's correct. And so-

[He gestures with his arms, as if to say ta-da.]

There you have it. A glimpse of my immortality.

[But he had been watching her face the entire time, and the flicker of recognition had not escaped his notice by a long shot.]

Have you ever seen anything like it, Doctor?