In Elixir, New York Times bestselling author Brian Fagan tells the story of our most vital resource and how it has shaped our history, from ancient Mesopotamia to the parched present of the Sunbelt. Fagan relates how every human society has been shaped by its relationship to our most essential resource. This sweeping narrative moves across the world, from ancient Greece and Rome, whose mighty aqueducts still supply modern cities, to China, where emperors marshaled armies of laborers in a centuries-long struggle to tame powerful rivers. As the earth's population approaches nine billion and ancient aquifers run dry, we once again remember the importance of this vital resource. To solve the water crises of the future, we may need to adapt the water ethos of our ancestors, captured here in rich detail by Brian Fagan.