Third came "The Age of the League of Nations, 1919--1983," with the gold of democracy battling with the spreading red of socialism, for the black of autocracy had erstwhile vanished.
The fourth map was the most fascinating and terrible. Again the black of autocracy appeared, obliterating the red of the Brotherhood of Man, spreading across half of Eurasia and thrusting a broad black shadow to the Yellow Sea and a lesser one to the Persian Gulf. This map was labelled "Maximum German Expansion of the Second World War, 1988," and lines of dotted white retreated in concentric waves till the line of 2041.
This same year was the first date of the fifth map, which was labelled "A Century of the World State," and here, as all the sea was blue, so all the land was gold, save one black blot that might have been made by a single spattered drop of ink, for it was no bigger than the Irish Island. The persistence of this remaining black on the map of the world troubled my boyish mind, as it has troubled three generations of the United World, and strive as I might, I could not comprehend why the great blackness of the fourth map had been erased and this small blot alone remained.
~3~
When I returned from school for my vacation, after I had my first year of physical science, I sought out my uncle in his laboratory and asked him to explain the mystery of the little black island standing adamant in the golden sea of all the world.
"That spot," said my uncle, "would have been erased in two more years if a Leipzig professor had not discovered The Ray. Yet we do not know his name nor how he made his discovery."
"But just what is The Ray?" I asked.
"We do not know that either, nor how it is made. We only know that it destroys the oxygen carrying power of living blood. If it were an emanation from a substance like radium, they could have fired it in projectiles and so conquered the earth. If it were ether waves like electricity, we should have been able to have insulated against it, or they should have been able to project it farther and destroy our aircraft, but The Ray is not destructive beyond two thousand metres in the air and hardly that far in the earth."
"Then why do we not fly over and land an army and great guns and batter down the walls of Berlin and he done with it?"
"That, as you know if you studied your history, has been tried many times and always with disaster. The bomb-torn soil of that black land is speckled white with the bones of World armies who were sent on landing invasions before you or I was born. But it was only heroic folly, one gun popping out of a tunnel mouth can slay a thousand men. To pursue the gunners into their catacombs meant to be gassed; and sometimes our forces were left to land in peace and set up their batteries to fire against Berlin, but the Germans would place Ray generators in the ground beneath them and slay our forces in an hour, as the Angel of Jehovah withered the hosts of the Assyrians."