Tracey arrives back at Dark Towers as darkness falls, meaning that the Tall Knight will soon appear. She convinces Lord Dark she is innocent, and he calls the police. Miss Hawk snatches the Golden Book of the Tall Knight and splits as all of Dark Towers plunges into darkness. Benger and Bunce go after her. As Tracey, Towser, Edward, and Lord Dark emerge from Dark Towers, the Tall Knight arrives, and scares the bad guys witless. As Benger, Bunce, and Miss Hawk are arrested, and the darkness lifts, Tracey gives Lord Dark the Golden Book of the Tall Knight. The Tall Knight has vanished, but throughout the house are strange sounds like laughter. The ghosts of Dark Towers are having the last laugh.

• Andrew Davies

• Peter Mayhew
• David Collings
• Sean Barrett