In this ambitious book, bestselling author Sanjeev Sanyal chronicles the grand sweep of history from East Africa to Australia, conjuring the great cities of Angkor and Vijayanagar, medieval Arab empires and Chinese ‘treasure fleets’ in rich, vivid detail. He explores remote archaeological sites, maritime trading networks and half-forgotten oral tales to challenge established historical narratives with fresh evidence. Shining new light on medieval geopolitics and long-lost cities, ‘The Ocean of Churn’ is a mesmerizing journey into the heart of a vibrant civilization.