Captured by pirates, Valka the Wolf Slayer is sold into slavery then battles as a gladiator in order to survive. Purchased by a great spiritual master, he undertakes a quest to re-capture a magical emerald stolen by the Black Brotherhood. Accompanied by the Shield Maiden, Aquila, and her band of women warriors, Valka battles his way across a blazing desert and into a black mountain of sorcery where the jewel is kept. He faces psychic attacks, an army of bloodless ghouls, a wave of poisonous serpents and a deadly labyrinth. But his most dangerous challenge comes when he confronts the emerald itself and faces the irresistible lure of the gift it offers.