New York Times bestselling author Kim Stanley Robinson returns with a bold and brilliant vision of New York City in the next century. As the sea levels rose, every street became a canal. Every skyscraper an island. For the residents of one apartment building in Madison Square, however, New York in the year 2140 is far from a drowned city. There is the market trader, who finds opportunities where others find trouble. There is the detective, whose work will never disappear -- along with the lawyers, of course. There is the internet star, beloved by millions for her airship adventures, and the building´s manager, quietly respected for his attention to detail. Then there are two boys who don´t live there, but have no other home -- and who are more important to its future than anyone might imagine. Lastly there are the coders, temporary residents on the roof, whose disappearance triggers a sequence of events that threatens the existence of all -- and even the long-hidden foundations on which the city rests.