The sound came through the stone while Iven was checking the reset marks.
It was too low to be a bell. The workers felt it in their boots, looked at one another and kept their hands where the inspection required them. Beyond the covered lane, Hearth’s shoulder moved through a distant opening in the city roofs.
A second sound answered from farther along the train.
Neri lifted her eyes from the carriage board.
“Did you hear that?”
“Yes.”
“Mercy?”
“I don’t think so.”
