Romana II went alone to Barastabon to get a sponge cake as a surprise for K9's birthday. The cake's trip through the Doctor's TARDIS, combined with the strange properties of the confectionery-based planet on which the crew had found themselves, caused the Cake to gain sentience. (PROSE: The Not-So-Sinister Sponge) Romana also visited Barastabon with Clare Keightley to obtain edible ball bearings for the Doctor. (PROSE: Shada) The Fifth Doctor offered to take Erimem and Peri to Barastabon to pick up a chocolate gateau. (AUDIO: The Church and the Crown)