The Heretic by Miguel Delibes

"The Heretic" is a historical novel set during the Spanish Inquisition. It follows the life of a man born in 16th century Spain, who, despite being raised in a strictly Catholic environment, begins to question the teachings and practices of the Church. As he grows older, he becomes involved in the Protestant Reformation, risking his life in a society where heresy is punishable by death. This book explores themes of faith, religious persecution, and the struggle for freedom of thought.