[ They're absolutely inconspicuous which is why some of the regular patrons of the library may be giving them looks from a distance. Keith picks up on this, but is going to pointedly ignore this. ]

That doesn't seem unlikely. Maybe the Cwyld caused some political schisms back in the day.

[ A beat. ]

But it does beg the question of why they're interested in the mirrorbound. As far as they know, we've all been pretty indoctrinated by the people on the surface.