"After years of slowly overtaking the continent, rising floodwaters have obliterated America's great coastal cities and then its heartland, leaving nothing but mountaintop colonies surrounded by open water. Myra and her seven-year-old daughter, Pearl, fish from their boat, visiting dry land only to trade in the few remaining outposts of civilization. For seven years, Myra has grieved the loss of her oldest daughter, Row. But when Myra discovers that Row was last seen in a far-off encampment, she and Pearl embark on a voyage into the icy northern seas. On their journey, Myra and Pearl join forces with a larger ship. But secrets, lust, and betrayals threaten their dream--Myra can no longer ignore the question of whether saving Row is worth endangering Pearl and her fellow travelers."--Page 4 of cover.