Arthuriana

Morgana uses her black magic to create a Beast, known as the Questing Beast. It is a shape shifting creature that cannot be hunted down. It can disappear and reappear and turn into various different animals - a large serpent, a griffon, a hybrid of various creatures. Morgana releases it into the countryside and it begins to attack people and livestock. The people cry out for a hero to slay the Beast. Word of the terrorizing beast arrives in Camelot. Although several knights of the Round Table express their desire to kill the Beast including Lancelot, Pellinor, and Lamorak, Arthur vows to slay the Beast himself. Merlin tells him that the Questing Beast is a creation of Morgana's and that it's dark power comes from the Devil, and therefore he must use Excalibur the magic sword to slay it with. Pellinor and his son Lamorak, both whom serve as Knights, interested in personal glory and victory, seek out the Questing Beast themselves without telling Arthur, going forward ahead of the time that Arthur starts out on his quest to find the Beast.

During Pellinor and Lamorak's quest, in the Black Forest, they are seduced by Morgana who uses her sexual powers to keep them in her thrall. She performs oral sex on them and casts a spell on them so that their lust for her is so great that both father and son have sex with her simultaneously in double penetration. After this act, they are corrupted and weakened. Morgana keeps them as prisoners in her Black Castle's dungeon. Meanwhile, King Arthur, arriving in the Black Forest, finds the Beast and slays it using Excalibur. Through his own special abilities, Arthur hears the cries for help coming from Pellinor and Lamorak in the dungeon of Morgana's castle, Arthur breaks into the Black Castle and confronts Morgana who then leads him to the dungeon to show him what she has done to Pellinor and Lamorak. They have been languishing in the dungeon and Morgana has made it feel like three years have passed. They have died and become skeletons. Morgana laughs in triumph and tells Arthur to tell Merlin that she is winning the battle for the conquest of Camelot. Arthur rides back to Camelot and is more determined than ever to defeat Morgana.