"I don't know—"
"If we went to the roof of the tallest building," Rodney offered, "we might—"
Martin shook his head. "No. To be effective, the shield would have to cover the city."
Wass stared down at the metal street, as if he could look through it. "I wonder where it gets its power?"
"Down below, probably. If there is a down below." Martin hesitated. "We may have to...."
"What?" Rodney prompted.
Martin shrugged. "Let's look."
He led the way through a shoulder-high arch in one of the tall buildings surrounding the square. The corridor inside was dim and plain, and he switched on his flashlight, the other two immediately following his example. The walls and the rounded ceiling of the corridor were of the same dull metal as the buildings' facades, and the streets. There were a multitude of doors and arches set into either side of the corridor.
It was rather like ... entering a gigantic metal beehive.
Martin chose an arch, with beyond it a metal ramp, which tilted downward, gleaming in the pale circle of his torch.