Centre of the Earth
From Tardis Wiki, the free Doctor Who reference
Teddy Sparkles once took Esme, Jack, and Peter to the Centre of the Earth - also called the Earth's Core - where they faced flesh-eating lizard people and exploding volcanos. Missy reluctantly saved them while riding on the back of a giant Robot Badger. (PROSE: Teddy Sparkles Must Die!) By one account, the Centre of the Earth was the Secret Heart, a Racnoss ship that was the centre of the Earth. (TV: The Runaway Bride)
