In the second world, Nichor's dreadful Volsung is extracted from nothingness by the demon Nidhogg who asks him to go and get the magic belt of the keykeeper. For this she transforms him into "Thorgal" in order to fall asleep the suppsons of the beautiful (hero's lover too). Shortly after the real Thorgal is attacked by Volsung who decides, after stealing the so-called belt, to become the new king of the Vicking. Incognito Thorgal's income decides to take things back in hand and for that it will have to recover the belt and go to fight the demon in the second world, accompanied by the dwarf Tjahzi.