"Claude von Riegan, notorious nosy busybody." Claude grins at the self-roast. "You study the stars?" He takes a stab at the meaning of that latter title, eyebrows lofting in interest. He's fostered a deep appreciation for all the celestial bodies the night sky holds all his life.

He nods along to her further suggestions. "I know just enough about magic to know that it works differently here than back home." Either home. "It's interesting that the goddesses and demons seem to have such direct influences here– aside from some... recent extenuating circumstances, that's not the case where I'm from." The long-hidden truth about the Church of Serios, not to mention Byleth's whole situation, is a bit of an anomaly even in his world. And there are arguments to be made about whether Sothis and her children even are deities or just a different kind of being.

He waves a hand to his stack of books. "Please, if you see anything you want to read, go ahead. There's plenty to occupy me until you're finished with it."