K9 and the Missing Planet (novel)

Publisher's summary
An entire planet vanishes — a planet that was owned by Tellac Inc., a galactic company that turns whole worlds into mines and factories for their own profit. K9 is sent to find the missing planet. He finds instead a new universe and a very strange new breed of men. ..

Characters

 * K9 Mark I

Continuity

 * K9 is described as working for the Time Lords, suggesting this takes place some time after the events of The Invasion of Time.
 * K9 continues to pilot the vessel K-NEL.
 * Earth is known as Tellus in this far future; the planet would also be given another name, Ravolox, in The Mysterious Planet.