When a massive climate megastorm hits New York City, the streets turn into rivers within hours. Power fails. Rescue never comes. The city begins to drown.Sarah Kline is an ER nurse and a single mother. When the flood traps her daughter at a school across the city, Sarah must cross a collapsing city with no food, no power, and no help. As water rises and fear spreads, survival becomes a daily battle.But the flood is only the beginning.Beneath the drowning city, something ancient begins to rise. The disaster may not be natural, and the truth waiting below could change the future of humanity forever.Survival is only the first battle.