INTRODUCTION. When and why did it come about that one prevailing way of understanding what it means to be free was replaced by a strongly contrasting account that came to be no less widely accepted, and still remains dominant? The argument of the book is that, in Anglophone political theory, the change happened quite suddenly in the closing decades of the eighteenth century. Before that time it was generally agreed that what it means to be free is that you are not subject to, or dependent on, the arbitrary will and power of anyone else. Liberty was equated with independence. But by the early nineteenth century it had come to be generally accepted that liberty simply consists in not being restrained from acting as you choose. What prompted the change, the book argues, was not the imperatives of commercial society, as has often been argued. Rather it was a growing anxiety, in the face of the American and French Revolutions, about the democratic potential of the ideal of liberty as independence.

The conclusion revisits the book's conceptualization of the geography of freedom in North America. It argues that the main differences between spaces of informal, semi-formal, and formal freedom for fugitive slaves come down to differences in freedom seekers' motivaitons, networks, visibility, and vulnerability. It is clear that runaways’ motivations and expectations of freedom from slavery tended to differ by degrees, and these informed their escape attempts. The networks that facilitated slave flight to all three spaces of freedom also differed by degrees, from family networks in spaces of informal freedom to more organized antislavery networks in spaces of semi-formal and formal freedom. Visibility was an important factor in slave flight. Freedom seekers in the urban South were the most dependent upon developing and cultivating false identities in order to prevent recapture; those who fled beyond the borders did not need to hide their identities at all. Finally, freedom seekers' vulnerability to recapture and reenslavement differed across the continent. Runaways in the urban South were the most vulnerable, whereas those who fled the United States were the least vulnerable.

How was slave flight in North America characterized? How and why did enslaved people flee to—and navigate—different destinations throughout the continent, and to what extent did they succeed in evading recapture and reenslavement? The Introduction lays out overarching questions and purpose. Freedom Seekers examines the experiences of runaways from southern slavery between 1800 and 1860. Taking a continental approach, this study highlights the diversity of slave flight in North America by conceptually dividing the continent into three distinct (and continuously evolving) spaces of freedom for runaway slaves, namely: spaces of informal freedom in the US South, where enslaved people attempted to flee slavery by trying to pass for free; spaces of semi-formal freedom in the Northern United States, where slavery was abolished but where the status of fugitive slaves was contested; and spaces of formal freedom in Canada and Mexico, where slavery was abolished where runaways were considered legally free and safe from reenslavement. The Introduction to this study also positions it within the scholarship on fugitive slaves, explaining its innovative continental perspective and new conceptual approach.

The third chapter explores slave flight to spaces of semi-formal freedom in the antebellum North. It analyzes why freedom seekers sought to risk their lives to escape the South rather than flee to nearby spaces of informal freedom; how they did so; their settlement processes; and how they fared in the legal quagmire of rendition and reenslavement. It begins with an examination of enslaved people's perilous northbound journeys, emphasizing the particular reasons some freedom seekers sought free soil and some semblance of legal freedom from slavery. It then delves into refugees' experiences settling in and sustaining themselves in the northern states, with an emphasis on their integration into northern free black communities. The chapter concludes with an extensive discussion of the ambiguous legal status of fugitive slaves in the Northern United States and how conflicts over legal rights and the conditions for rendition developed over time, often stimulating mass civil disobedience to federal fugitive slave laws and de facto protection from reenslavement.