Yes, that's probably at the heart of it. That, and his work with the dragons was so physical. I'd imagine there's a lot of uncertainty about whether he'll be able to go back to it eventually, or at all.

Uncertainty is the absolute worst, isn't it?

And as far as the Unicorn goes, I'm glad you told me. I can see why you'd feel different after, too. That's some powerful magic, and not lightly done. And that's piled on top of the actual process of fighting and defeating Barty, which must've just been exhausting on all sorts of levels.

How've you felt, then? Other than bloody tired.