Three Worlds to Conquer
Three Worlds to Conquer
Description:
Three worlds: Jupiter where no human could live but where men had strange allies and stranger enemies!
Ganymede where human settlers lay helpless under the guns of a spaceship directed by a madman!
Earth freed from a planet-wide tyranny, but facing total destruction from space!
The destinies of these worlds were strangely linked and in the hands of a man sentenced to instant death!