In a drowned world, can refuge be found?

Less than a hundred years from now, the world as we know it has disappeared beneath the sea. Only fifteen-year-old Mara has the vision and the will to lead her people in search of a new beginning in this harsh, unfamiliar world.

Booklist Science Fiction/Fantasy Top 10 for Youth

“This sweeping, futuristic fantasy envisions a ravaged Earth, submerged almost entirely in water after a century of global warming . . . wholly imagined, extraordinarily vivid worlds.” —Booklist, starred review

“Ecologically conscious teens will embrace this girl who is destined to save humanity.” —School Library Journal

“Intellectually rigorous and bursting with humanity, this is a book to be read again and again.” —Sunday Herald (UK)