David Diop's "At Night All Blood Is Black" is a powerful and haunting novel exploring the psychological toll of World War I on African soldiers fighting for France. The story follows Alfa Ndiaye, a Senegalese tirailleur, who descends into madness after the death of his lifelong friend and fellow soldier, Mademba Diop, on the battlefield. Consumed by grief and a desire for revenge, Alfa embarks on a chilling ritual of vengeance against German soldiers. Diop masterfully delves into themes of identity, humanity, and the brutal absurdity of war, challenging readers to confront the dark legacy of colonialism and the dehumanizing nature of conflict. This Goncourt des Lycéens winner is a visceral and unforgettable meditation on trauma and the disintegration of the human spirit.