A spot-on assumption, Valdis - he's picked up on something, but he can't place it. There's notes of what makes up her power that are familiar, but unlike anything he's ever come into contact with. (He certainly hopes it isn't Extinction. God, he didn't want to see what that would truly wind up being like.)

"Very well, then," He agrees, and while he's still uncertain, he folds his arms against the table once more, settling slowly but surely. "Cryptic as anything, but I'm sure I can trust that you've got a good explanation for me."

Even if his tone is very dry, he's half-joking. He's just notoriously a bit flat about it.