Cixin Liu - The Dark Forest

Suddenly, the alert sounded throughout the ship like the crying of ten thousand ghosts in the darkness of space. Display interfaces popped up in midair like snowflakes, showing a huge quantity of information that Natural Selection ’s defense systems had received about the incoming missiles, but no one had time to read it.

There was a space of just four seconds from the sounding of the alert to the detonation of the infrasonic H-bombs.

Images transmitted back to Earth from Natural Selection showed that Zhang Beihai may have understood all of this in just one second. He had imagined that his heart had grown as hard as iron through the arduous procession of more than two centuries, but he had overlooked something hidden in the deepest part of his soul, and had hesitated before making the final decision. He tried to restrain the trembling of his heart, and it was that last moment’s softness that killed him and everyone on board Natural Selection . After the month-long face-off in the darkness, he was just a few seconds slower than the other ship was.

Three small suns lit up the blackness of space, forming an equilateral triangle with Natural Selection at the center, at an average distance of forty kilometers. The fusion fireball lasted for twenty seconds and sparkled with infrasonic frequencies that were invisible to the naked eye.

The returned images showed that in the three seconds that remained, Zhang Beihai turned to Dongfang Yanxu, flashed her a smile, and spoke: “It doesn’t matter. It’s all the same.”

The exact words were only a guess, because he didn’t have time to finish before a powerful electromagnetic pulse arrived from three directions, vibrating Natural Selection ’s enormous hull like a cicada’s wings. The energy in these vibrations was converted to infrasonic waves, which, in the image, looked like a fog of blood that enveloped everything.

The attack had come from Ultimate Law, which had fired twelve cloaked missiles armed with infrasonic H-bombs at the four other ships. The three missiles fired at Natural Selection, which was two hundred thousand kilometers away, had been launched before the others so that the ones fired at its three neighboring ships would reach their detonation points at the same time. A vice-captain had taken over after the suicide of Ultimate Law ’s captain, but it was unknown who ultimately made the decision to launch the attack. And it would never be known.

Ultimate Law was not one of the lucky ones remaining in the Garden of Eden at the end.

Of the three other pursuing ships, Blue Space had been the best prepared against unexpected incidents. Before it was attacked, it had turned its interior into a vacuum and put all personnel in space suits. Because infrasonic waves were impossible in a vacuum, no personnel were injured, and the body of the ship suffered only minimal damage from the electromagnetic pulse.

Right after the nuclear fireballs exploded, Blue Space began its counterattack with lasers, the fastest response possible. It lit up Ultimate Law with five gamma-ray laser beams and burned five huge holes in its hull. Its insides quickly caught fire and there were minor explosions, causing the ship to lose all combat capability. Harsher attacks from Blue Space followed, and under continuous attack by nuclear missiles and a rain of railgun fire, Ultimate Law exploded violently, leaving no survivors.

At almost the same time as Starship Earth’s Battle of Darkness was going on, a similar tragedy was taking place far on the other side of the Solar System. Bronze Age launched a sudden strike on Quantum, using the same infrasonic H-bombs to kill off all life inside its target, but preserving the target ship whole. Because the two ships had sent only minimal information back to Earth, no one knew exactly what had taken place between them. They had both gone into intense acceleration to escape from the probe attack, but they had not decelerated like Natural Selection ’s pursuers had, so their remaining fuel ought to have been more than enough to return to Earth.

The boundlessness of space nurtured a dark new humanity in its dark embrace.

In the expanding metal cloud formed from the explosion of Ultimate Law, Blue Space rendezvoused with Enterprise and Deep Space, neither of which showed signs of life, and collected all of their fusion fuel. After stripping them of their hardware, Blue Space flew the two hundred thousand kilometers to Natural Selection and did the same to that ship. Starship Earth was like a construction site in space now, the massive hulls of the three dead ships dotted with the sparks of laser welding. If Zhang Beihai had still been alive, the scene would certainly have reminded him of the aircraft carrier Tang two centuries before.

Blue Space took pieces of the three derelict warships and set them up in a Stonehenge formation, forming a tomb in outer space. There, they held a funeral for all the victims of the Battle of Darkness.

Wearing space suits, the 1,273 crew members of Blue Space assembled in a floating formation at the center of the tomb. These were the remaining citizens of Starship Earth. Around them, huge pieces of spaceships towered like a ring of mountains, the gashes cut into the wreckage like enormous mountain caves. The bodies of 4,247 victims remained within this debris, which cast its shadows over all of the living as if they were a mountain valley at midnight. The only light was the iciness of the Milky Way where it shone through the gaps between the wreckage.

Moods remained calm during the funeral. The new space humans had passed through their infancy.

A small votive lamp was lit. It was a fifty-watt bulb with a hundred spare bulbs next to it that would be automatically substituted in the lamp. Powered by a small nuclear battery, the votary lamp could remain continuously lit for tens of thousands of years. Its dim light was like a candle in the mountain valley, casting a small halo onto a high cliff of the wreckage and shining on a piece of titanium bulkhead engraved with the names of the victims. There was no epitaph.

One hour later, the space tomb was illuminated one final time by the light of Blue Space ’s acceleration. The tomb was traveling at 1 percent of the speed of light. In several hundred years it would decelerate to 0.03 percent of light speed due to the drag from interstellar dust clouds. It would still reach NH558J2 in sixty thousand years, but Blue Space would already have headed off toward its next star system more than fifty thousand years before that.

Blue Space traveled deep into space carrying plenty of fusion fuel and an eight-fold redundant supply of critical parts. There was so much material it was impossible to fit it all inside the craft, so several external storage compartments were attached to the hull, completely altering the ship’s appearance and turning it into an enormous, ugly, irregular body. Indeed, it looked like a traveler on a long journey.

The previous year, on the opposite side of the Solar System, Bronze Age had accelerated away from the ruins of Quantum in the direction of Taurus.

Blue Space and Quantum had come from a world of light, but they had become two ships of darkness.

The universe had once been bright, too. For a short time after the big bang, all matter existed in the form of light, and only after the universe turned to burnt ash did heavier elements precipitate out of the darkness and form planets and life. Darkness was the mother of life and of civilization.

On Earth, an avalanche of curses and abuse rolled out into space toward Blue Space and Bronze Age, but the two ships made no reply. They cut off all contact with the Solar System, for to those two worlds, the Earth was already dead.