Hartan Expanding
Copyright February 2024 by Fit529 Dotcom (started 2019)
== Disclaimers ==
All names have been randomized to protect those idiots who think they are secretly living other lives in random multiverse shards and having lots more sex than they normally do here. Even if you randomly have the same name as someone here, NO, it's not you, get over yourself.
All persons engaging in or exposed to any sexual situations are over age 18.
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== Chapter: In Case You Don't Remember ==
I was only 3 years old when three impregnable Hartan spaceships arrived, paving lumbering paths of devastation.
Two ships landed in rural China and one in Siberia, but once down, they followed independent paths, slowly and inexorably clearing and mostly-leveling one 110 km square of land before moving to the next.
Each Hartan ship was cubical, 400 meters on a side (about two city blocks) and hung about 300 meters in the air, deploying energies both vast and unceasing. They had shields impregnable and elastic to projectile weapons, their black surfaces absorbing particle beams and lasers without any effect. Nothing we did could hurt them.
The ships weren't entirely passive.
Once energy beam weapons had been tried, the ships started shining a 'spotlight' on the surrounding countryside of ultra-high energy lasers (at many frequencies up through gamma and x-rays) as well as various charged-particle beams of electron-positron pairs.
These counterattacks bathed the areas around them in flaming death. At least for the most part, they limited themselves to ground targets within about 10 km, though airborne targets were hit from farther away.
Their most damaging attack was what they did to the land itself. Some kind of beam was projected downwards at least 5 meters into the earth, inducing violent vibrations and turning the surface from rock to mixed but thick gravel. Lakes were boiled and had their bottoms shaken, and soil was left boiled and steaming.
The beam also induced a low-level radioactivity which effectively sterilized the soil and gravel it left behind.
When it cooled, soil and gravel remained, a coarse, sterile, mildly radioactive dust.
No messages emerged from these ships -- no signals or communication of any kind. They just moved inexorably onward, only going about 2 kph, about walking speed. It was slow, but sometimes the squares they cleared were connected at the corners and they advanced towards some big cities faster than anticipated.
Even with slow movement, people often fled in the wrong direction, only to burn up trying to walk across the radioactive land, or got piled up trying to cross bridges and failed to escape in other ways.
Millions died, and then it was billions.
No countermeasures we tried worked.
Nuclear blasts above, below, even simultaneously around them, did nothing and the ships moved forward unperturbed. Oh-so-slowly, inexorably onward they marched, back and forth, wiping out everything, systematically erasing everything.
Within a few months after their arrival, we discovered that grasses again grew where they had passed, and soon after, trees and bushes sprouted. The sterilization wasn't complete, or seeds deeply buried were shaken close enough to sprout.
That, or the wind carried seeds and those sprouted. Initially, it was a small ray of hope - a Very, Very, Very small ray. Humanity had few options. Desperate things had to happen.
Eventually, we found some vegetation that was significantly more tolerant of the ionizing radiation. To control the radioactive dust and prevent erosion, we sent in drones to 'bomb' the afflicted areas with seeds, a process that had to be timed for rainfall and many other factors.
Animals - vital to recreating an ecosystem - couldn't survive returning. Complex DNA degraded quickly in the face of that much ionization.
Birds were felled by the radiation, as were mice, foxes, deer -- most got a fatal dose within days. Bees and insects could survive, on the edges, since they were radiation-tolerant, but in the areas initially burned and churned, they had nothing to eat either.
The replanted grasses, bushes, and trees gave the insects a place to go and things to eat, sure, but this took a long time and the radiation was pretty intense even for them.
The concrete, wood, and steel structures of man were first turned to soot from a distance, and then as the ship passed overhead or immediately nearby, they were ground into a dust indistinguishable from any other thing they had passed over.
Only the largest building foundations were over 5 meters deep, and only some survived at that depth. Solid surface rock became gravel, gravel became stone dust, and reinforced concrete became stone dust with flakes of steel in it.
All concrete structures disappeared, melting and blowing away in any ambient wind.
Analysis of the radiation showed it was from an isotope with a 3-year half-life that emitted low levels of gamma radiation. The soil would be mostly safe to grow food in after about 75 years, scientists said, but despite being able to move small amounts of dirt to clear a non-radioactive place, the massive amount of earthmoving required to displace soil 5 meters deep was absolutely impractical. Further, the dust would blow and any cleared land would be covered in it soon enough. The poisoned lands were no longer useful to us.
Some people tried moving buildings from doomed areas to already-poisoned ones, just to have a place to live. This worked only in very short timeframes, since dust blew in and gave horrible radiation illnesses to those who tried it.
Those not killed by radiation exposure were frequently made sterile.