|Publication Date||21 October 1976|
Jo peered through the panel and saw nothing. Yet someone had entered the cabin. She could hear hoarse breathing and stealthy padding footsteps. A beaker rose in the air of its own accord, then dropped to the floor … THE INVISIBLE ENEMY
Vicious plants spitting deadly poison, invisible Spiridons attacking from all sides and, in hiding, a vast army, waits … for the moment to mobilise and CONQUER.
- Jo Alone
- The Invisible Menace
- The Deadly Trap
- In the Power of the Daleks
- The Escape
- Danger on Level Zero
- Ascent to Peril
- The Enemy Within
- Vaber’s Sacrifice
- Return to the City
- An Army Awakes
- The Last Gamble
DEVIATIONS FROM THE TELEVISED STORY
- The Daleks saturated the forests with deadly rays which destroyed most of Spiridon. The cliffhanger ending, left out of The Space War is instated here.
- The supreme Dalek is an envoy from the Dalek Emperor.
- The Thals give The Doctor and Jo anti-fungus suits.
- Jo states in the log that The Doctor was injured in a Dalek ambush. In the televised version of Frontier in Space, he was injured in a confrontation with The Master and the Ogrons after the Daleks left.
- Vaber questions Taron‘s decision to go and help The Doctor.
- Codal states that he volunteered for the mission because he was the only scientist young and fit enough, rather than because his entire section volunteered.
- Vaber is present when Rebec tells Taron about the Dalek army, rather than having gone to look for other survivors.
- Vaber and Latep‘s bomb doesn’t detonate because it is buried by an icecano, rather than because it was faulty.
- It is Vaber, rather than Taron, who joins The Doctor in spray-painting the invisible Dalek.
- Wester removes his robes before releasing the virus, meaning he is invisible at the time. There is no mention of him becoming visible when he dies.