61,011 Pages

A Heligan Structure was a space station which was also a tree.

Humans tried to terraform the planet Golrandonvar so they could colonise it. This would have killed the native Thara, as the methane they needed would have been eliminated. The Eleventh Doctor helped the natives to fight back, and the humans were stranded on a Heligan Structure. The Fourth Doctor and Leela visited the Structure centuries later, unaware of the events caused by his later incarnation. (PROSE: The Roots of Evil)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.