Oh! They meant libraries as depicted by the teevee. Because the best fictional libraries that immediately jump to my mind are in Umberto Eco's "The Name of the Rose" and Susanna Clark's "Jonathan Strange and Mr. Norrell."

She's watched a lot of crime shows, though, so she's clearly credentialed to back-seat solve and comment on this case. /endsarcasm.

Bones, dude.

We need bones.

Also, because while what we *call* dragons exist in mythologies, what those dragons are is variant to the point of incoherency. Some have wings, some don't. Some have lairs, some don't. Some are giant serpents, some are not.

Given the worldwide distribution of fossils, I'm willing to bet that skeletons belonging to beasties like this: