This book examines how slave traders interacted with and resisted the British suppression campaign in the nineteenth-century western Indian Ocean. By focusing on the transporters, buyers, sellers, and users of slaves in the region, the book traces the many links between slave trafficking and other types of trade. Drawing upon first-person slave accounts, travelogues, and archival sources, it documents the impact of abolition on Zanzibar politics, Indian merchants, East African coastal urban societies, and the entirety of maritime trade in the region. Ultimately, this ground-breaking work uncovers how western Indian Ocean societies experienced the slave trade suppression campaign as a political intervention, with important implications for Indian Ocean history and the history of the slave trade.