Golzarath: L'Attaque Des Morts-Vivants (1998)

"More than a thousand years ago, demons summoned by a group of banished sorcerers brought forth a bottomless abyss. A passage to the bowels of Hell. A demon by the name of Golzarath ventured to the surface to explore this world of mortals. He has never returned to his kind and forever haunts these mountains." This is the story that a young man tells his friend while spending the night in a mountain refuge, as a horde of undead creatures rushes towards them, awakened by the incantations of the demon Egrezebel.