St. Peter Claver voluntarily entered the horrors of the slave trade to serve as a “slave of the slaves,” bringing comfort, healing, and the sacraments to the most forsaken. This powerful book follows his heroic charity aboard disease-ridden ships and in the slave pens of the West Indies, where he lived Ignatian spirituality with selfless love. Alongside Claver’s example, the book reflects on the Church’s historical witness against slavery and offers timely spiritual insights on how personal holiness and sacrificial love remain the most potent force against injustice—then and now.