Valka the Wolf Slayer travels to the magical Isle of Britain. While there, he meets the stalwart knight, Sir Gawain, and Britain's greatest bard, Taliesin. They challenge the black magician, Klingsor, and face the many terrors of his castle. In the process, Valka rescues the beautiful maid, Kundry, who had been entranced by Klingsor. They travel to the Castle of Maidens, where Valka battles the evil knight holding them captive. Arriving at Camelot, he meets King Arthur, champions Queen Guinevere in the Affair of the Poisoned Apple, then embarks on the Quest for the Grail.