FANDOM


You may be looking for the mind parasite.

Diadem was a planet considered to be the most relaxing world in Mutter's Spiral. This changed after it was mined out by the Union for its jethrik and trisilicate. The Doctor visited the planet at some point by his fifth incarnation. (PROSE: The Crystal Bucephalus)

Community content is available under CC-BY-SA unless otherwise noted.

Fandom may earn an affiliate commission on sales made from links on this page.

Stream the best stories.

Fandom may earn an affiliate commission on sales made from links on this page.

Get Disney+