That horned head bobs a few times, blinking over the shelves as they walked. "Ah- I suppose so!" They returned, reaching out to check one particular book. 'Vaulted Arches in Modern Architecture'... Hmmm, not quite what they were after.

It only takes a few moments for a lightbulb to click. "Perhaps we could ask someone? I imagine someone maintains this place." It'd be much faster than checking individual books, if a little less fun.