This is a book about a world in a life. An individual lost to history, Elizabeth Marsh (1735-85) travelled farther, and was more intimately affected by developments across the globe, than the vast majority of men. Conceived in Jamaica and possibly mixed-race, she was the first woman to publish in English on Morocco, and the first to carry out extensive overland explorations in eastern and southern India, journeying in each case in close companionship with an unmarried man. She spent time in some of the world's biggest ports and naval bases, Portsmouth, Menorca, Gibraltar, London, Rio de Janeiro, Calcutta and the Cape. She was damaged by the Seven Years War and the American Revolutionary War; and linked through her own migrations with voyages of circumnavigation, and as victim and owner, she was involved in three different systems of slavery.