"The size of the continent is of no importance. Our space vessels are very small, and everything must be brought from our home planet."
I blinked rapidly, feeling I was getting out of my depth.
"You are not from Earth?" I asked.
"Our ancestors were, but we are all native-born Martians."
"You wouldn't care to give me a few more facts, would you? The sound of confusion I keep hearing appears to be inside my own head."
"I am sorry, I thought you knew. Here, let me fill up your glass. The story really begins many thousands of years ago when a sudden change in solar radiation raised the temperature here on Earth. By sudden I of course mean a matter of years, really centuries. As the climate changed and the ice caps melted, the continued existence of life on the surface of the planet was threatened. Coastlines were altered and immense areas of low-lying land inundated; great cities were drowned. This in itself might have been dealt with had it not been for the seismic disturbances brought about by the shifting weight on the Earth's surface as the poles were freed of their ice burden and the released water covered other areas. Earthquakes and lava flows, sinking lands and the rising of new mountains. All quite terrible, we have seen the recordings many times in our schools. An incredible international effort was launched to terrafy the planet Mars—that is, make it suitable for human habitation. This involved the creation of an atmosphere there with a high carbon dioxide layer to trap the increased radiation of the sun, the transportation of ice mountains from the rings of Saturn, things like this. It was a noble ambition that in the end did succeed, but it bankrupted the nations of Earth who gave their all in this unbelievable effort. Eventually there was dissent and even warfare as weakened governments fell and greedy men fought for more than an equal share of space on the new made world. Through all this the waters continued to rise on Earth and the first Martian settlers struggled against the harsh rigors of a barely livable world to establish the settlements. In history these are known as the Deadly Years because so many people died; the figures are unbelievable. But in the end we survived, and Mars is a green and comfortable world.
"Earth did not fare as well. Contact was lost between the planets, and the survivors of the once-teeming billions here fought a dreadful battle for survival. There are no written records of that period, thousands of years long, but the results are clear enough. This single large continent remained above the sea, as well as some island chains to mark earlier mountain ranges. And madness rules mankind. When we were able, we rebuilt the ancient spaceships and brought what help we could. Our help was not appreciated. The survivors kill strangers on sight and take great pleasure in it. And all men are strangers. The almost-unshielded solar radiation here produced mutants of all kinds among man, plants and animals. Most mutations died off quickly, but the survivors are deadly to a universal degree. So we helped where we could but really did very little. The Earthmen were a continuing danger to each other but not to Mars. That is not until He united them some hundreds of years ago."
"Has he really lived all that time?"
"It appears that he has. His mind is as bent as theirs, but he can communicate with them. They follow him. They actually work together, building that city you have seen, building a society of sorts. He is certainly a genius, albeit a warped one, and they have factories going and a rudimentary technology. The first thing they did was ask for more aid from Mars and would not believe us when we said that they were getting the maximum already. Their mad demands would not have bothered us had they not unearthed rockets armed with atomic bombs that could be directed at our planet. It was after the first of these arrived that this expedition was organized. On Mars we survived by cooperating, there was no other way, so we are not a warlike people. But we have made weapons and will reluctantly use them to ensure our own survival. He is the key to all the troubles, and we must capture or kill him. If we must kill others to accomplish this, we will do that as well. Thousands are dead at home and radioactivity is increasing in the Martian atmosphere."
"Then our aims are identical," I told him. "He has launched a time attack against our people with equally disastrous results. You have summed up our retaliatory plans quite neatly."
"How do we go about it?" Diyan asked eagerly.
"I'm not sure," I answered gloomily.