“Hot spot!” she yelled. It was a dwarven term, used to announce a location that was safe for the moment but very soon wouldn’t be. Demolitionists used it when they lit the fuse. Smelters used it when the molten iron was about to be poured. Soldiers used it when the shadow of an incoming catapult stone fell across them. Ginny used it now to tell Thud to move, fast, because now she could see the gear spinning its way toward him.
