Soldiers of Salamis by Javier Cercas

This novel revolves around a true event during the Spanish Civil War, where a nationalist soldier spares the life of a famous poet who was about to be executed. The story is told from the perspective of a journalist who becomes obsessed with the incident and embarks on a quest to uncover the truth about what happened. As he delves deeper, he discovers the complexities of heroism, history, and memory, and is forced to question his own understanding of these concepts.