Talking stone

Talking stones were native to Tyron, a planet in the seventeenth galaxy which was visited by the First Doctor, Ian Chesterton, Barbara Wright. (PROSE: Doctor Who and the Crusaders) Ian later mentioned the talking stones of Tyron before telling of his adventure in Palestine. (HOMEVID: Ian Chesterton: An Introduction) In an alternate timeline, the First Doctor explained to Katarina that, although Steven Taylor likely knew little about the talking stones of Tyron, this in itself did not mean Steven was not intelligent. (AUDIO: Daughter of the Gods)