"A lot." He sets the books he pulled down, too, before gesturing around them. "I mean, most of the permanent shit here? That's decades of magic, dozen of magicians pouring their time and energy into it purposefully, and then just -- just ambient shit, seeping in."

Like Josie can borrow magic, so too can places like the Archive, albeit on a much lesser scale, but so many people have and will pass through here that it's negligible. Like being able to power a lightbulb with a static electricity.