They’d passed over an interchange the size of central Amsterdam, where the Katy crossed one of the inner, older ring roads. Now they were looking several miles out toward another, much newer and larger interchange. Saskia began to see features she had noticed lately on maps: the tall corporate-campus buildings of Energy Corridor, and the two large regions shown on maps as bodies of water. On satellite imagery they looked like forested parks. Today they actually did look like reservoirs, albeit very untidy ones. Instead of placid open water their surfaces were grubby with trees, and instead of neatly staying within bounds they had burst their levees and invaded the suburban developments that had ill-advisedly been constructed on surrounding land.