Flora and Fauna Edit
The Chlorians were ruled by courts, still used astrologers, and fought with simple swords and daggers. Despite this, they did have an idea of space travel and races beyond their solar system, though they couldn't go into space themselves.
The humanoids of Chloris were kept at a primitive level due to the scarcity of metals on the planet. This stopped any mass production of materials and also stopped any clear cutting of the forests which always spread rapidly and made it very difficult to move through. Whoever held the monopoly of metal held the power.
For many years, Lady Adrasta held power on Chloris. She saw her power threatened when the Tythonian ambassador, Erato, arrived and offered metal in exchange for chlorophyll. To solve her problem, Adrasta had Erato thrown into the pit. This pit led to the only mine on the planet, the one from which all metal came.
For fourteen years Erato stayed in the pit, and Adrasta continued to rule. She threw people who displeased her into the pit where they were supposedly eaten by "the creature". Adrasta's people were unaware of Erato's true nature; they didn't even know what the creature looked like.
Adrasta believed that she no longer needed the creature to guard the mine as she now had the TARDIS. She led a party into the mines to kill the creature. There she encountered Erato, who related his story of Adrasta's betrayal. Her people turned against her and Erato and the Wolfweeds killed her.
The Tythonians saw the imprisoning of their ambassador as an act of war and sent a neutron star to destroy Chloris' sun. The resulting explosion would wipe out the system. The Doctor used his TARDIS' tractor beam to slow the star while Erato used his ship to halt its journey. Organon organised the trading agreement between Chloris and Tythonus that Erato had originally intended. (TV: The Creature from the Pit)