|Publication Date||26 June 1980|
Sinister dangers await them in this final stage of their quest …
- The Vanishing Planet
- Missile Strike
- A Trap for K9
- The Furnace
- Behind the Mirror
- The Shadow
- Lost of Zeos
- The Armageddon Factor
- The Planet of Evil
- The Bargain
- Small World
- The Key to Time
DEVIATIONS FROM THE TELEVISED VERSION
- The Shadow is an extra-dimensional ghost resurrected by the Black Guardian from one of The Doctor’s enemies.
- The Shadow’s planet is an asteroid that resembles a medieval castle on the inside.
- The planet is littered with trap doors.
- The Doctor argues that the brief moment the Key was complete, the real White Guardian would have sorted everything out.
- Drax mentions The Doctor’s exile to Earth. He also mentions purchasing a second-hand TARDIS instead of stealing one, like The Doctor and their other classmates had done, and went into repair and maintenance.