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Pages 126
ISBN 0-426-19617-1
Publication Date 18 October 1984


Inferno is the name of a top-secret drilling project to penetrate the Earth’s crust and release a major new energy source.

A crisis develops when a noxious liquid leaks out as drilling progresses – the green poison has a grotesquely debilitating effect on human beings.

As the Earth’s plight worsens, The Doctor  is trapped in a parallel world, unable to rescue the planet and its inhabitants from the destructive force of Inferno…



  1. Project Inferno
  2. The Beast
  3. Mutant
  4. The Slime
  5. Dimension of Terror
  6. The Nightmare
  7. Death Sentence
  8. Countdown to Doom
  9. Penetration-Zero
  10. The Monsters
  11. Escape Plan
  12. Doomsday
  13. Return to Danger
  14. The Last Mutation
  15. The Doctor Takes a Trip


  • The “door handle” is confirmed to be the sonic screwdriver.
  • The Doctor deduces how the parallel Earth became a dictatorship.
  • Stahlman’s motivation is explored in more detail.
  • Stahlman is said to have grown up in the ruins of post-war Germany (so he’s either younger in the novel or the story is set circa 1990, unless he is describing the First World War).
  • The Doctor is traumatized by the destruction of the other Earth.
  • Stahlman is described as burly and Liz as having reddish-brown hair, neither of which entirely reflects their on screen appearance.
  • Stahlman’s first name is given as Eric.
  • It is explained that The Doctor plans to use a power surge from the project’s reactor to overload the blocks placed on the TARDIS.
  • Benton refers to Bromley by name: In the televised version, his surname is only given in the credits.
  • The character of Latimer is unnamed.
  • The scene between Sir Keith Gold and Patterson prior to the car crash is removed. Sir Keith states he was unconscious for several hours, explaining his disappearance.

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