Elias lunged, meaning to shout a warning, but the sound died in his throat. The steam didn't hit her. It curled. It twisted. It looped around her head in a slow, deliberate orbit.

The hissing stopped instantly. Bessie let out a contented gurgle. The air cleared.

"Keep the change," she said. "And check the valve next Tuesday. She’s going to be moody."

"You hear it too?" she asked softly.

Clara took the cup of espresso Elias had poured before the explosion. She took a sip. "We are the conduits, Elias. The baristas, the mechanics, the janitors of heat. We get burned so others don't have to. The steam tells us where the pain is."