 Note: Contains The Underwater War by Richard Dinnick and Rain of Terror by Mike Tucker. Both novels were subsequently re-released as separate volumes: Underwater War and Rain of Terror. Cover blurb:
One Time Travelling Doctor
Two Alien Adventures In The Underwater War, the Doctor and his companions are on-board The Cosmic Rover, a spaceship orbiting the water-planet Hydron. Joining the crew, they journey underwater on an apparently scientific exploration. But nothing is as it seems on the high-tech submarine. When a virus infects the crew, the Doctor discovers the ship is hiding a dangerous secret... And in Rain of Terror, terrible tiny creatures swarm down from the sky, intent on destroying everything on planet Xirrinda. As the colonists try to fight the alien infestation, the Doctor searches for the ancient secret weapon of the native Ulla people. Is it enough to save the day? | 
