Terror on Xaboi (comic story)

Summary
The Doctor, Romana and K9 land on a planet called Xaboi that K9 explains is in space region 9 zero. It has a rocky terrain, a non-toxic atmosphere and is home to a race of extremely primitive humanoids. the Doctor and Romana leave the TARDIS into a blizzard. Romana says that she hears a scream but the Doctor says it was probably just the wind. When they head back to the TARDIS the screams are heard again, so they start heading towards the sound. The sound leads them to a cavern. Once inside they realise that the cavern is made out of the dead bodies of giant humanoids. They see at the base of the cave some vaguely humanoid figures. When they go to help them, they are attacked by a giant beast that looks like an ape. The Doctor sneaks back to the TARDIS and grabs a gun that will imobilise the beast. He ends up killing it instead, saying it didnt seem like the answer, but the gun's stun setting had no effects on the beast. The Doctor explains to Romana that it is best to let the people of Xoboi go on with their evolution without interference. However the Doctor is still unsettled by what will happen to the people and thinks he might come back some day to check on their progress.

Characters

 * Fourth Doctor
 * Romana
 * K9

Continuity
to be added

Timeline

 * Terror on Xaboi takes place after DWAN: Light Fantastic
 * Terror on Xaboi takes place before DWAN: Reluctant Warriors