Traditional narratives of the period leading up to the Civil War are invariably framed in geographical terms. The sectional descriptors of the North, South, and West, like the wartime categories of Union, Confederacy, and border states, mean little without reference to a map of the United States. This book contends that antislavery writers consistently refused those standard terms. Through the idiom this book names “abolitionist geography,” these writers instead expressed their dissenting views about the westward extension of slavery, the intensification of the internal slave trade, and the passage of the Fugitive Slave Law by appealing to other anachronistic, partial, or entirely fictional north-south and east-west axes. Abolitionism’s West, for instance, rarely reached beyond the Mississippi River, but its East looked to Britain for ideological inspiration, its North habitually traversed the Canadian border, and its South often spanned the geopolitical divide between the United States and the British Caribbean. The book traces this geography of dissent through the work of Martin Delany, Ralph Waldo Emerson, William Wells Brown, and Harriet Beecher Stowe, among others. This book explores new relationships between New England transcendentalism and the British West Indies; African-American cosmopolitanism, Britain, and Haiti; sentimental fiction, Ohio, and Liberia; John Brown’s Appalachia and circum-Caribbean marronage.