Adrasta gained power by holding the monopoly of the planet's metal. All of this metal came from the planet's only mine, the entrance to which was a pit that was guarded fiercely by Adrasta's men. She was aided by Karela and the Huntsman, the latter controlling Adrasta's Wolfweeds. These Wolfweeds had been grown in nurseries within the palace for her use. From K9's data banks, Adrasta learned about the TARDIS. She saw its powers as a way to dominate the planet without the creature to protect her mine. She decided to have K9 kill the creature and took a party into the mine.