As the world is consumed by massive floods, one Texas family chooses to build their own survival raft in this climate disaster novel.

Before the Big Flood, Liz Green worried more about getting in trouble at school than global climate change. She lives on the Texas Coastal Plain with her single mother, brilliant older brother, and awkward younger brother. But as the water keeps rising, her family—along with billions of people all over the world—are stuck between the rising seas and snarled escape routes.

The military is overwhelmed and the wealthy are rushing to their secret ocean habitats. But a website called RaftPeople.com is helping ordinary people construct homemade crafts to float out of the disaster. Now Liz and her family must work together with their neighbors—a female special forces officer, and a retired naval engineer—to build their craft before their Houston suburb floods.