Roots: Bert I Gordon's 1979 movie Empire Of The Ants; Monty Python's Parrot Sketch ("I want to register a complaint!"). The Kromon voices are almost identical to those of the Martians in the War Of The Worlds PC game and remix album. Alien (Director's cut - L'da begs C'rizz to kill her)
Goofs: If L'da has had the same transformation done as Charley undergoes later, why does she still seem to have an independent mind?
Given his race needs to rebuild their world and they need a leader, C'rizz's decision to leave with the Doctor and Charley seems odd.
L'da and Charley are both turned into Queens by the Kromon in order to provide them with new offspring. Why do the Kromon not change one of their own into a Queen?
Technobabble: The Doctor and Charley are held down at one point by a psychotronic force.
An interactive gyro-conductorscope.
Dialogue Triumphs: "You must have some use. What is it?" "I've often wondered."
"The Kromon have encountered the Big Bang theory."
Continuity: The universe the Doctor and Charley are in appears to be made up from a series of zones separated by "interzone-resistance" in which it is difficult to mode and there may be hallucinations. The fact that the Doctor and Charley are aware of this suggests that they've already passed through several zones, though they haven't previously encountered the Kro'ka.
The interfaces are governed by the Kro'ka, a telepathic being of some sort. He has trouble reading confused minds.
The Eutermes zone has blue rock, red dust, orange sky and two suns, and is mainly desert due to the actions of the Kromon. It suffers from dust storms.
The Eutermesan are bipedal vaguely reptilian beings with vestigial bone structures on their heads. They have the chameleon ability to change colour to match their environment. Most of them tend to be farmers. C'rizz was to be their King, ruling with L'da.
Kromon are large termite creatures, which live in huge anthill biospheres. They are able to convert other creatures into Kromon royalty using an elixir. They also use a drink to brainwash their slaves. They have advanced technology, e.g. laser guns and ramjet ships, though they don't have space flight ability. The Doctor thinks they might be able to work out how the TARDIS works. They're divided into specialised castes and have a strict hierarchy. The interior of their biospheres is very warm and humid as they depend on water. Their food is pre-masticated and involves maggots. A Queen's children are linked to her - a Queen's death spells doom for the children, and all Kromon rely on the Queens for guidance.
Roots and minerals beneath the surface of the planet serve as an antidote to the Kromon elixers.
The Kromon zone was lush and plentiful before a company from another race pillaged their world, providing an extra sun. The Kromon almost died out, but after a thousand years, defeated the other race, absorbed their knowledge of company management, and were able to conquer the Eutermes zone.
Oroog burrow underground. They are intelligent beings, covered in fur and have huge big claws, yet regard themselves as animals.
Salanders live in the magma deep in under the world but never come up to the surface.
The Doctor uses an Okiya Warrior cry to disperse Charley's hallucination. He hasn't used it since he was last with the Yaki Indians.
C'rizz is a sort of monk, dedicated to peace.
Links: 'Bloodtide' (The Doctor mentions he met Darwin), 'Vengeance on Varos'.
Location: The Eutermes zone, the Divergent Universe.
Untelevised Adventures: The Doctor has visited the Yaki Indians. He has been to Mars before it became a dead world.
The Bottom Line: A conventional story, with the usual captures and escapes. Philip Martin's obsession with economic fascism rears its head again in the ultra-business-minded Kromon. It's an adventure that would have worked much better on television than audio. New companion C'rizz doesn't really come across as companion material, more like the average idealistic rebel archetype which populate many a Who story.