In this supplementary work, Harriet Beecher Stowe provides a rigorous factual defense of her novel by cataloging the real-world evidence of systemic cruelty inherent in American slavery. The text is structured as a multifaceted indictment, blending legal precedents and court rulings with personal testimonies and harrowing advertisements for the sale of human beings. Stowe’s primary objective is to prove that the horrors of her fiction were actually understated, demonstrating how the law frequently prioritized the property rights of masters over the basic humanity and moral safety of the enslaved. Ultimately, she calls upon the Christian church to recognize its complicity in this "moral and religious question" and urges a spiritual awakening against the irresponsible power granted by a desolating legal system.