 Their attempts to escape are foiled by Alain, who then seals Edmond, Blanche and Denis in a stone cell and starts a waterwheel that presses the cell walls inward to crush them to death.Voltan fights Alain and gets the key to the dungeon and pushes Alain into the waterwheel, temporarily stopping the crushing walls.Wounded by the guards, Voltan struggles to the dungeon and, with his dying breath, gets the key to Denis just as the walls start moving in again.