This is the first English translation of Galdos's Juan Martin El Empecinado (1874), in the first series of his Empisodios nacionales. This is the only novel in the first series dedicated to a guerilla fighter rather than to analyses of the battles. In this novel, Galdos recreates the popular figure of Juan Martin "El Empecinado" from faithful accounts based on his personal life and deeds as a guerrillero. He skillfully depicts opposing political and ideological forces, revealing to his readers a variety of elements that were weakening the nation from within. The novel presents a vast context of historical, literary, and Biblical references which lead the reader to a deeper understanding of the force that makes people unite to preserve the integrity and cultural values of their nation. The heroic figure of Juan Martin highlights his successful military leadership, his campaigns against the French during the War of Independence and his unique characteristics as an exemplary leader. It presents a detailed. View of the world of the Spanish guerrillas in the 19th century. It is a valuable source for historical information. This translation is a must for scholars, researchers, and the general public interested in Spanish history, literature, and culture.