"La Guerre du Feu: Roman des âges farouches" by J.-H. Rosny aîné is a novel published in 1909. Set one hundred thousand years in the past, it follows the Oulhamr tribe after they lose their precious fire in battle. Unable to create fire themselves, they face extinction. Three warriors embark on a perilous quest to reclaim it, confronting mammoths, giant lions, hostile tribes, and rival claimants. Their survival depends on courage, cunning, and endurance in a savage prehistoric world.