The coordination of the Transition Spacecraft and "The Great Magnet" had become an established tactic of the human military.
The Trisolaran fleet, which was originally undergoing curvature flight, was like a submarine rushing through the depths of the sea.
Now, humanity was employing advanced gravitational field technology combined with curvature technology, suddenly turning a patch of sea into a void bubble, where the submarine's propellers could churn all they wanted, but they couldn't generate any power anymore.
The Trisolaran fleet had been forcibly removed from curvature flight for the first time and was a bit slow to react.
However, the Earth Corps that followed also exited lightspeed and immediately launched an attack on the main force of the Trisolarans.
Finding escape hopeless, the main force of the Trisolarans engaged in a fierce battle with the Earth Corps.
At the same time, they immediately informed the other planetary systems of the Trisolarans of humanity's new battle tactics: humans now possessed the technology to forcibly interrupt curvature flight! Curvature flight was no longer safe, run for it! Before humanity finds you!
The main force of the Trisolarans was resolved to fight to the death, and for a time, the space around the battlefield became as fragile as torn cloth, with planetary systems getting caught up in the battle, stars being torn apart, and planets reduced to dust.
The ferocity of the battle was such that it could be observed from more than a dozen light-years away; once the main battlefield quieted, planetary systems within over twenty light-years were annihilated!
Even from over a hundred light-years away at Blue Maiden Star, the formation of an interstellar void in this region of space was observable.
The main fleet of the Trisolarans was annihilated here by the Earth Corps!
...
The early warning system of the main fleet of the Trisolarans did have some effect; the few planetary systems of Trisolarans that had not yet been discovered immediately embarked on escape.
But humanity had already learned the locations of five of the Trisolaran planetary systems in advance, and Gu Yi, a young commander, led the Second Corps in a raid on them.
Almost none of the Trisolarans from the five planetary systems survived, and the few ships that managed to escape were quietly "marked."
Belinsky then led the Solar System State's Third Corps, adopting the tactics of the Earth Corps, to snipe civilian spacecraft trying to flee from the Trisolaran homeworld, ultimately leaving no one from the Trisolaran main world alive.
At that time, Belinsky did not join the battle at the main battlefield but entered lightspeed to intercept the enemy's raiding fleet at a designated location.
After the battle at the main battlefield ended, the major battles of this interstellar war were also concluded.
It was not until more than twenty years later that Belinsky's Third Corps exited lightspeed and once again executed their gambit, forcing the enemy's raiding fleet to fall out of curvature flight involuntarily.
In the moment they exited curvature flight, the Trisolaran raiding fleet received the news of their homeworld's defeat, which they still found somewhat unbelievable.
The news of the defeat was a severe blow to them, and then, after a not-so-intense battle, the First and Third Corps completely annihilated this enemy force.
From then on, the Trisolarans were greatly weakened, and humanity, after more than six centuries of effort, finally rid themselves of the sword hanging over their head.
From then on, it was very unlikely that the Trisolarans could pose a threat to humanity again, but with their current strength, humans also did not have the ability to completely eradicate a civilization possessing curvature spaceship technology.
They could only send out more interstellar probes, to find them before they constructed a new world, and to deal them another severe blow before they could grow powerful again.
...
Singer had always enjoyed this clean-up work, soaring in the boundless space, far from the wars at the edge of the world.
The war, which had lasted for thousands of time grains, was getting more brutal, and it was said that a third party had joined the conflict, making an end to the war even less likely.
It was said that within hundreds of light-time-grains around the battlefield, all signs of life had been extinguished.
The area had become like a scar of a star, glaring yet filled with death.
It was called glaring because it had become very noticeable in the emptiness of space, and as the war continued, perhaps more worlds would join in, until the entire area became riddled with holes.
Compared to that, the work of clean-up was much more comfortable, carefree.
Only now, the investment of the homeworld in clean-up was growing less and less, and perhaps this work would soon no longer exist.
Singer sensed a change in its emotions and began to sing its favorite ancient song:
I saw my beloved,
I flew to her side,
I presented her with my gift,
It was a small piece of frozen time,
With beautiful patterns of time...
Singer suddenly stopped singing, huh? Why had space become so tattered here?
```
Could it be...?
Singer stopped in their tracks, carefully gathering information from the surroundings.
Just as they had suspected, a small-scale but intense interstellar war had taken place here, leaving the space battered and fragmented.
If a low-level low-entropy body wandered into this space, it would definitely experience a deceleration phenomenon.
That is, it would hover in this shattered space and might never be able to leave.
They would surely marvel at the wonders of the universe, at how such chaotic and "holey" space could form.
Heh, what they don't realize is that many easily observed phenomena in the universe were once interstellar battlefields.
Singer carefully plucked the information membranes around them, but unfortunately, the victorious side had been cautious and left no useful information behind.
Wait, that information membrane looks familiar.
Using their main core for the search, Singer indeed found the corresponding information membrane in the "tomb" records.
Over one hundred time particles ago, they had sent Two-dimensional foil to that world.
Very dangerous!
Singer immediately realized that this world was dangerous!
To be able to wage interstellar war of this scale with only a little over one hundred time particles indicated a danger level akin to the edge worlds!
Following procedure, Singer marked this location; it was no longer a Cleaner's concern.
Because a Cleaner could potentially be destroyed by low-entropy bodies of this level, it was necessary to dispatch The Destroyer to search for traces of low-entropy bodies in the vicinity.
Thinking this, Singer felt a touch of disappointment.
For they knew that the Destroyers from the home world were all on the battlefield, with no time for destruction.
Nevertheless, Singer marked the location according to protocol and made a special note that Two-dimensional foil had been sent but failed to destroy the enemy, then sent this information to the home world.
Just as Singer was about to continue singing their favorite ancient songs, the Elder suddenly said, "Stop these pointless acts, stop cleansing, and return to the home world."
Singer was taken aback, "Is it starting?"
They really did not want to end up as a mere painting.
"No," said the Elder. "There's a turn in the tide of the war; we need to concentrate all our forces for a final effort."
"Including Cleaners?"
"Including Cleaners," the Elder repeated. "Cleaning can be done at any time, but the chance for a decisive battle victory comes only once."
Singer said helplessly, "Alright."
After a moment of hesitation, they said, "What about the location I reported? Just leave it be?"
In the beginning, the edge worlds weren't so strong, but now they had grown powerful enough to threaten the mother world.
The Elder said, "We can't concern ourselves with that place right now."
Clearly, the Elder didn't feel like explaining further, and Singer didn't ask again.
They turned around to head back, and as they did so, they sang with a mournful tone:
Everywhere there are wars,
Everywhere worlds lie in ruins,
My beloved,
Where is the place where we can be together?
Soften the sorrow in my heart,
My beloved,
Where is the place where the soul can find peace?
Soothe the sorrow in my heart...
```