I have murdered the dreams of a child

Kid (about 7): Do you have a book about dragons?

Me: I think so, let's look over here. (I take him to the J398s--fairy tales and myths)

Kid: No, I mean like the ones with fossils.

Me: Oh, sorry, do you mean dinosaurs? Or like, Komodo dragons? Lizards?

Kid: No, the ones that attacked the kingdoms...?

Me: ...you mean the ones that fly?

Kid: Yeah.

Me: OH, um. Well. They haven't, um, found any fossils of those. There are just legends of them. Um.

Kid: So does that mean there aren't any books on them?