The card is scanned with a boop, and the redhead whistles. "You weren't kidding." She leans forward. "You've had two of these out for a year..."

"And archaeology is in the non-fiction wing," she points, "on the second floor. If you want stone to bronze age, then you want to go down the hallway, third set of stacks, fifth and sixth aisles..." She paused, then grinned. "That's a bit complicated. You want me to actually show you?"