Her grandfather.. Inigo tries to think, but he doesn't think he knows a whole lot about Kitty's family. He doesn't ask people much about theirs, unless they offer up the information first - if not just because he knows it can be such a sensitive subject.

"Did your grandfather like dragons?"

It's half a joke, but half also just genuine curiosity, and he smiles at the thought. It must be rare for people in other worlds to like dragons - they're not real there, after all. As odd as that is.