They pass by Corregidor. An island shaped like a bead of water on a waxed boot, it is gently rounded in the middle but steeply sloping into the water. It has a long, bony, dry tail that trails off at one end. The Marines know that the island is riddled with tunnels and bristling with terrible guns, but the only sign of these fortifications is the clusters of concrete barracks up in the hills, housing the men who serve the weapons. A tangle of antennas rises up above Topside. Their shapes are familiar to Shaftoe, because many of the same antennas rose above Station Alpha in Shanghai, and he had to take them apart and load them into the truck.