Zoda-Kappa was the fourth moon of Agrana Prime. By 3895, the Holomorph had been imprisoned on the moon for a hundred thousand years.
Professor Charles Feige set up a facility on Zoda-Kappa to find a way to save the citizens of the Earth Empire from the Dream. The Holomorph infected Feige and several other people before being defeated by the Sixth Doctor, Melanie Bush, Hebe Harrison, Lydia Betancourt and Sakho Cato, after which the Doctor hoped that the moon would be left alone. (AUDIO: The Dream Nexus)