Robur the Conqueror’s ‘The Terror’ - Gray Morrow illustration featured on

Robur the Conqueror’s ‘The Terror’ - Gray Morrow illustration featured on the cover of Classics Illustrated No.163 (Gilberton, 1961). 

Morrow’s action scene is based on Jules Verne’s famous novel, Master of the World. In this sequel novel, Robur had perfected a new invention, which he has dubbed the Terror. It was a ten-meter long vehicle, that is alternately speedboat, submarine, automobile, or aircraft. It could travel at the (then) unheard of speed of 150 miles per hour on land and at over 200 mph when flying.