Sometimes, at dusk, Mara returned to the shop and placed the metal key on the Faro’s base. The device thrummed like a well-kept instrument. She would run a quick scan—less to find secret compartments now, more to listen. The Faro’s laser traced the air, and in the sample points that filled the screen she could still hear the cadence of his speech in the way he’d lettered his maps: careful, stubborn, full of grace.