Tigella

Tigella was a jungle planet in the Prion system that neighbored Zolfa-Thura. Native flora included the carnivorous Bell Plants.

It was inhabited by the humanoid white-haired Tigellans, who utilized the Dodecahedron as a power source. The structure of Tigellan society was based on two castes: the scientific Savants led by Deedrix, and the religiously fanatical Deons led by Lexa, who worshiped the god Ti. (TV: )

History
The Fourth Doctor and Romana II visited the planet in 1980 and fought Gaztaks while Meglos retrieved the Dodecahedron. (TV: )

The Sixth Doctor once sang about his adventures, mentioning Tigella among the planets he'd saved. (AUDIO: )

It had at least three moons. The Twelfth Doctor was in the middle of trying to find the third moon's hidden Sea of Disquiet when he wrote his first letter to the readers of Doctor Who Adventures. (PROSE: )