Auzou Book for the kingdom of the four walls volume 1 the black dungeon

In the Kingdom of the Four Walls, four peoples are separated by immense walls: werewolves, humans, trolls and elves. With his family in mortal danger, the young werewolf Victor is forced to escape to the world of Men, where he meets the children of the Kingdom's knight. A magical quest begins, leading them to discover the secrets of this world, amid age-old battles and power struggles.