When Greg and Tom Hunter learn of their father's accidental death during his exploration of the asteroid belt, they are certain that it was no accident.
The gifting of animals with human speech is scarcely an unique idea; the idea of a talking horse goes back at least to the siege of Troy, for certainly there must have been some dialogue amongst the Greek warriors enclosed in the wooden horse's belly.
Garin Featherstone is a pilot on an Antarctic expedition to investigate strange readings near the South Pole, when he is compelled to fly his plane down into a mysterious crater.
Science fiction, in collaboration with the idea-men and technicians of Hollywood, has been responsible for many horrors, dating back to "e;The Cabinet of Dr.
"e;Normality"e; is a myth; we're all a little neurotic, and the study of neurosis has been able to classify the general types of disturbance which are most common.
Two men who build an experimental excavating vehicle discover it cannot be turned, and it burrows 500 miles into the Earth's crust, emerging into the unknown interior world of Pellucidar.
The first book of the Barsoom series introduces the reader to John Carter, a Confederate veteran of the American Civil War, who is mysteriously transported to Mars, where he finds that he has great strength and superhuman agility.
Two men had died before Syme Rector's guns to give him the key to the ancient city of Kal-Jmar-a city of untold wealth, and of robots that made desires instant commands.
Before Earth put a stop to mankind's exploring the galaxy, some rebels managed to escape into space in sleep ships in a desperate attempt to find habitat worlds they could colonize away from the oppressive Pax dictatorship.
