The novel tells about the plight of the mulatto nation, Izaura, and its suffering with Leoncio, its depraved and cruel master, and about the unbridled love that binds it to the young Alvaro, that idealistic aristocrat and anti-slavery. These events represent the political and social contradictions of Brazilian society in the nineteenth century, when intellectuals and politicians were divided between supporters The system of slavery, and the economic and social interests it entails, and is opposed to this system because of the ethnic and cultural obstacles and obstacles it places that prevent the country’s progress and society’s pursuit of freedom and justice.