Melvyn Bedford

As part of a plan to release Sutekh, the mummies are building a rocket to fire at the pyramid on Mars. The Doctor is resolved to destroy the rocket, but Sutekh's will may be too strong.

Inside the pyramid on Mars, the Doctor and Sarah Jane must solve puzzles and escape deadly traps to prevent Sutekh's release from his eternal imprisonment, but it may already be too late.

Lost in the universe of antimatter, the Doctor communes with the creature and makes a bargain. Sarah discovers Professor Sorensen's dark secret which threatens to overwhelm him.

Unable to escape, the Morestran probe is being pulled back to the surface of Zeta Minor. On board the ship, the Doctor and Sarah are hemmed in by anti-men!