Bayard and the Knights of the Western Isles are welcomed to Camelot for a feast celebrating a union between the two kingdoms. However Nimueh has other plans. Posing as a serving girl, she infiltrates Bayard’s party and enters Camelot with the view to seeking revenge on Merlin.
Unaware of her true identity, Merlin befriends the young serving girl. Once she has gained his trust, Nimueh warns him that Bayard isn’t the friend he seems – he plans to poison Arthur.
Merlin bursts into the banquet and stops Arthur drinking from a poisonous goblet in the nick of time. Bayard denies that he tried to poison Arthur. King Uther decides that the only way to determine if he did is for Merlin to drink from the cup himself. Merlin falls to the ground, poisoned.