As more tears appear in the Line of Twilight, Tom's grandfather proposes a quest for a lost artefact with the power to heal it, which Lady Lyzera is also determined to find.
Negotiating perilous puzzles in an ancient castle, who will prove worthy enough to possess the one artefact that can save the world – or destroy it?
- Tom Clarke - Scott Haran
- Benny Sherwood - Percelle Ascott
- Ursula Crowe - Annette Badland
- Michael Clarke - Michael Higgs
- Randal Moon - Dan Starkey
- Simeon Swann - Trevor Cooper
- Varg - Kristian Phillips
- Lyzera - Alex Childs
- Eelix - Lewis Macleod (voice)
- Jathro - Tom Bell
- The Quest Master - Junix Inocian
- This story marks the final appearance of Simeon Swann who departs for the Neverside to save the Line of Twilight.
- This story also marks the final appearance of Jathro who meets his fate after being turned into beetroot bugs by Lyzera as punishment for betraying her earlier.