“There’s something I don’t understand,” I said. Etienne Hart snorted in derision. After an irritated glance at Inventor Hart, Cesare said, “Go on.” “If something happened to stop the trains’ power, and this is all one system, why is the rest of the power on?” The Diamond Inventor smiled as one might at a child. “Good question. There must be separate power systems for each, so that a fault in one doesn’t bring the entirety to a standstill.” Tony stirred. “What exactly was done up there? Is there some photograph, or drawing? It sounds as if something in the station’s ceiling wasn’t built right.” I gaped at him. “Could the ceiling be part of this system?” Everyone in the room seemed struck silent. Inventor Cuarenta’s face turned red. “I’ll have images sent up right away.” Lance stepp

