The evil ruler of the underworld, Hel, cherishes devilish plans to subjugate all life on earth. And to do this, she needs to return the Skull - a huge magical crystal that contains most of her power. The skull was stolen by Hel's former servant, the necromancer Nidhogg, and with its help he created his own kingdom. In vain Hel sent hordes of Horsemen of Death to Nostrand - Nidhogg easily repelled their attacks. And then it was the turn of the warrior Freyadis. She was driven by love for her daughter, who remained a hostage in the hands of Hel. She was helped by faith in victory and incomparable military skill. Hard battles and the nightmarish dungeons of Nostrand, monstrous torture and blood-curdling horror awaited her. But the frantic warrior and her faithful friends overcame all the trials and crushed the vile necromancer...