Exxilon
The Exxilons, once an incredibly advanced society, built a great city of technological marvel. Tragically, their technology got away from them, though, and began killing the Exxilons, forcing them back to far less civilised a state. The remaining Exxilons came to worship the city as a form of divinity.
Podcast
C072 Death to the Daleks
Sarah Jane hand-cranks the TARDIS doors and narrowly escapes ritualistic murder while The Doctor finds a more interesting temporary companion.