Chapter 3 explores the production of knowledge about Catholicism by people of African descent and their engagement with Iberian and their religious vernaculars. It is based on a small body of Inquisition records, largely relaciones de causas de fe, and one full proceso de fe, the sacrilege case of Felix Fernando Martínez in 1776. The only chapter that focuses on the Caribbean region, it demonstrates the importance of Catholicism in black material and oral culture, whether that be through embrace, questioning, or overt criticism of the Church, Catholic cosmology, and the saints. The religious knowledge production of defendants from the Caribbean, most of whom were free and described as mulato, does not suggest African intellectual genealogies alone. Rather, people of African descent were part of and constructed a vibrant and heterogeneous religious Caribbean and exchanged knowledge about the supernatural, especially Catholicism, with people of all ethnicities. Such speech, and on occasion acts, nevertheless was potentially dangerous to them in the transcultural Caribbean, evidenced by the violent sentences handed down, ranging from spiritual exercises, to forced labour and execution.