He nods curtly at their decision and follows like a shadow, like he's getting used to doing when they - the they, plural are moving with intent, together.

...On the wall-fittings, too, he has some experience to share. Never mind how he learned it.

He draws close to the sconce they're examining and, unbothered by their Nail, taps a finger at the corner of the fitting and instructs accordingly.

"Metal pins, I'd think, with this design. Pry the edges one by one. Careful."