It was later adapted by Nigel Robinson for Big Finish's "The Lost Stories" range in November 2010. Written by Alan Wakeman. Wakeman was one of several writers contacted by David Whitaker in mid-1963. The story was commissioned on 31 July 1963. It involved a planet ruled by sentient rocks and trees, with the ability to control humans with an inaudible sound. A four-part episodic storyline breakdown of the story featured in the third volume of the magazine "Nothing at the End of the Lane". In this breakdown the following episode titles are quoted: "Airfish", "What Eats What", "The Living Planet" and "Just in Time". Note that in the script, Susan is referred to as Suzanne, and Barbara is referred to as Miss Canning. Written by Robert Gould. This was the first attempt at adapting C.E. Webber's "The Giants", which had been planned as the first serial of season 1 before it was dropped. Gould eventually abandoned it to work on other projects. A second attempt at the storyline, written by Louis Marks would become "Planet of Giants". An idea suggested by Robert Gould when he abandoned work on the "miniscule" storyline in the February of 1964 that involved a planet where plants treated people the way people treat plants. This was rejected by Verity Lambert who felt it too close to the book "The Day of the Triffids". Written by Margot Bennett, the story was submitted in late February 1964, was blocked out of production during filming of "Planet of Giants", and the story idea was not pursued. Written by Brian Hayles. This story was Hayles' first submission to Doctor Who. The story focused the Doctor, Ian, Barbara, Vicki landing the TARDIS on the planet Numir, which its sun was extinguished, and encounter the surface dwelling ‘light people’ and the subterranean ‘shadow people’. The story was rejected by story editor Dennis Spooner on February 8, 1965, because the story was too similar to Malcolm Hulke’s "The Hidden Planet". It was also rejected in favour of Bill Strutton's "The Web Planet". It was later adapted by Matt Fitton for Big Finish's "The Lost Stories" range in September 2013. Written by Victor Pemberton. This story focused on a sentient form of mud that tries to take over the minds of British townfolk. Script editor for Doctor Who David Whittaker rejected it on the grounds that it was derivative of the Quatermass serials of the 1950s.