The level of the world’s oceans rose, and the streets became canals. Every skyscraper became an island. But for the residents of Madison Square in New York of 2140, it’s far from a dead city. A market trader who knows how to find new opportunities where others see only trouble. A policeman whose job is never done—of course with lawyers. An internet star whose adventures are watched by millions from a balloon. And the house manager respected for attention to details. Two boys who don’t belong here, but have no other home. And these two will be more important to the future than anyone could possibly imagine.