The Adventures of Sir Lancelot Season 1 Episode 25 The Ugly Duckling

While on a visit to castle Lamorack, Sir Lancelot and Merlin try to help their host when he receives a note threatening his daughter's life. Merlin learns that the note is false, written by the girl herself in a bid for attention. Later, the girl disappears and another note arrives; this time it's genuine. Guest stars: Carol Marsh as Sybil, Jeanette Hutchinson as Amora, Hector Ross as Sir Egbert.