The book is a seminal historical account of the Haitian Revolution, which took place at the end of the 18th century. It chronicles the brutal conditions of slavery in the French colony of Saint-Domingue and the subsequent uprising led by Toussaint L'Ouverture, a former slave who became a brilliant military and political leader. The narrative delves into the complex social and political dynamics of the time, including the influences of the French Revolution, and examines the broader implications of the successful slave revolt for colonialism and racism. The work is celebrated for its in-depth analysis and its passionate argument for the universal rights of all people to freedom and self-determination.

The book is an anthropological exploration of the rich cultural tapestry of Jamaica and Haiti in the late 1920s and early 1930s, delving into the rituals, customs, and social structures of the islands with a particular focus on Voodoo and Obeah practices. The author, an African American folklorist and writer, immerses herself in the communities she studies, providing vivid descriptions and analyses of ceremonies, dances, and religious practices, while also examining the political and social issues of the time. Her work offers a unique blend of personal narrative and scholarly observation, shedding light on the complexities and nuances of Caribbean culture and spirituality.