Here is the translation of your text. I have refined the flow to ensure it reads beautifully in English, fixing those minor grammatical slips in the first-person perspective we discussed earlier, while maintaining the dramatic, dark fantasy tone of the original:
How could she be so wondrous and lethal at the same time? She and her kind, gifted with immense powers and an aberrant cruelty, descended from the sky and manifested from the darkness of the woods with a purpose no human being could have anticipated. I had watched from afar the horrific destruction they brought with them, wearing an impassive expression and a gaze colder than ice. A cold that burns the skin and slowly corrodes...
I had remained hidden, my breath caught in my throat, with shivers of terror reminding me at every moment that perhaps, soon, it would be my turn as well. No one knew the motive guiding their actions, and no one had managed to oppose them. My village, the cities... They had fallen into chaos, and the flames of destruction illuminated the night. The moon did not watch over us, and the sun had never been so pale. Some called it the "Purge," others an apocalypse... The only people who had spoken to those creatures died shortly after. No one escaped; no one deserved forgiveness in their eyes...
Children had vanished, women were desperate, and together with the men, they resisted to save their families. But nothing could change things. Neither sacrifices, nor prayers, nor pleas for absolution before the much-feared "gods" of unknown origin.
I called them angels of death. The first time I saw one up close, I was enchanted: they possessed a fatal beauty, a magnetic gaze that would lure you into a trap, ready to steal your breath and stop your beating heart.
I knew that by seeing one of them, by admiring that woman as enchanting as she was terrifying, I would lose all hope.
I didn't know when they would find me or what they would do to me.
Only one thing was certain: an angel of death was hunting me down, and I wouldn't be able to run for much longer.
I had been running for hours. Night had fallen over the woods like a dark blanket, illuminated only by a sad, distant moon. My eyes followed that gleam in the hope of finding shelter. Of finding help. In my heart, I knew how stupid and foolish that was. There were no people capable of helping me, nor enemies of the angels of death capable of opposing them.
I was now far from the Feurun Coast, the area where my village, Greenhill, was located. Only a few hours had passed since the beginning of the end... yet I had lost everything in a matter of moments. My village had been razed to the ground, its citizens hunted and killed. The few survivors were on the run, my family among them. I had gotten separated from them by mistake: I had fallen down a slope at the base of Greenhill, and the hill was difficult to climb back up from that side. By some miracle I wasn't injured, and luckily I hadn't drawn the attention of those monsters. That, at least, was what I thought when I pulled myself to my feet and pressed on toward the thickest part of the woods.
My family would be heading to the port city of Destria. I could only pray for them and my own life, and walk quickly, never stopping.
A few hours into my journey, I got lost in the woods. The darkness didn't help me navigate, and I was exhausted and terrified. I could still hear the sound of my neighbors' screams, smell the burning flesh, the blood, and that feeling of despair that gripped my chest in an iron vise.
You're not going to make it.
They were negative thoughts, hopeless thoughts that had followed me since the start of the journey. The terror of what could happen haunted me, but I would keep going to find my family and protect them. I had undergone the village's military training for a year, since we were near the border and the country required all border residents to always be ready for conflict. I carried my father's dagger with me, a precious, rare, and magical weapon: its hilt bore the design of an angel's wing, and the sharp blade was engraved with blue runes. My father had told me it would work against those creatures, that it would protect me in the worst possible moment... when I met an angel of death.
But it wasn't true. Nothing would protect me from a confrontation with certain death.
She was right in the middle of a clearing. I had seen her hair gleaming under the moonlight, yet something told me it was the moon reflecting her light. She wore black clothes, tight around her body, hiding her pale and likely cold skin. From afar, I couldn't see any other details, plus... after noticing the enormous weapon she carried, I had fled. It was a black staff, topped with a massive blade that seemed to exude something dark. Something that rippled and surrounded the owner of that instrument of death.
My legs ached, but I was certain that if I didn't get away immediately, that creature would sense my presence. At the time, I didn't wonder why she was alone in the middle of the clearing, admiring the moon... I should have realized it... they are highly intelligent beings endowed with mysterious, lethal powers.
The angel of death knew of my existence. She had been tracking me for hours, and I realized my mistake right when I felt an intense pain in my shoulder. I fell onto the damp ground, gritting my teeth to keep from screaming. Blood was dripping from my wound, reminding me of how weak and human I was...
Ahead of me, I saw a small stone monastery, a piece of history, a building in ruins, but one that could hide me. I didn't look back and ran as fast as I could. I pulled the wooden doors open, shutting them behind me, then looked around: the monastery still bore its sacred symbols, with a few purple banners decorated with ancient religious signs. An altar stood in the center of the nave, still upright and intact, despite being surrounded by destroyed or semi-destroyed pews, collapsed columns, and chunks of the ceiling that had fallen to the floor.
I heard the breath of the wind, warning me of the angel of death's arrival. In that moment, I realized there weren't many places to hide, so I decided to run behind the altar and ready my dagger. If the angel got close, I would stab her in the chest. I barely held back my tears and gasps, peeking from my position to figure out where the angel was, but I saw nothing. I quickly glanced at the gash on my shoulder, then looked away when I saw the blood and open flesh. It was a deep wound.
The angel didn't open the door. She appeared right in the middle of the nave, displacing the air with her silent, terrifying manifestation. I heard the sound of her staff scraping against the stone floor, threatening me from afar. She knew I was here, and she knew she would find me.
I never expected to survive for long, but I had hoped to see my family at least one last time. I cried silently and tightened my grip on the dagger, remembering my father's words the day he gave me his weapon:
"Selyn, my dear... there will be times when you think you can't make it, but remind yourself of how strong you are, how alive you are, how full of light you are. Your mother and I have always told you that you shine, that you have a fire inside you ready to defend you and stop anyone who dares to hurt you. Your spirit is noble, strong, pure... it will be that very purity that saves you. Draw courage from your fire, my love. Do not fear the dark, because you can illuminate it with your light."
I decided to face death and not let an angel take me without fighting first. With this conviction in my heart, I stepped out into the open to look the person who was going to kill me in the eye. Despite the whirlwind of emotions I was feeling, drenched in despair, anger, and terror, I couldn't help but admire the beauty of that angel of death. She was even more stunning up close.
Her sharp, gray eyes watched me calmly, but her hand gripped her staff tightly, ever ready to raise it and bring it down on me, with her unjustifiable judgment, with her conviction to purge the planet. I stared back at her, even though my body was trembling and I felt like my heart was about to explode.
"Why?" I asked in a whisper, convinced I wouldn't get an answer.
"We are purging these lands. We follow the orders of divine beings, which you humans cannot comprehend." Her voice was truly angelic, something wondrous, but her words were dark and terrifying, devoid of emotion. Just like her eyes.
"And what are you purging them of?" I asked, my voice trembling, tightening my grip on the dagger.
"Of unfaithful beings. Of impure beings like you. Now be silent, human, I will end your life quickly. It will be an act of mercy." She began to move her staff, but I stopped her again, letting anger mix with my words and a sense of injustice make my voice echo through that monastery.
"You claim to purge. You claim to be merciful... but you are nothing but impure monsters. Monsters who justify their vile actions but act in the name of destruction. How can you purge when you yourselves are the rot staining these land—" Before I could continue, the angel struck me hard in the chest, throwing me against the altar, then grabbed my wounded shoulder in a punishing grip. I screamed and sobbed. I had hit my head, and blood was now staining my face as well, mixing with my tears.
"Silence."
"You'll never be able to wash the blood of innocents off those filthy hands... ahh—!"
She pressed her blade against my chest, and for the first time since I laid eyes on her, I noticed an emotion in her eyes. Maybe it was an illusion, but she looked incredulous, perhaps even angry. But how was that possible? They couldn't know human emotions. They were terrifying, divine beings. Beings different from humans.
"I will sink my blade into your chest, purifying you of your sins. I promised mercy, but your words are an affront... an insult."
I looked down at the blade and wrapped a hand around the wrist holding the staff. My dagger had fallen far from me... I couldn't retrieve it. Father, mother... forgive me.
I wasn't strong enough. I couldn't bear all that hatred and injustice.
"...your name," I whispered, trembling.
The angel brought her face closer to mine. "Why do you ask for my name? What use will it be once you reach death's door?"
"It's truly terrifying to die engulfed in such a thick, alien darkness."
I felt her breath against my skin, and it was warm; it felt human. Even the pale hand I had believed to be freezing warmed my skin when she tilted my face up to hers.
"I will grant you this, for your spirit that never surrendered to my oppression. Many would have chosen to beg me on their knees... but you dared to defy me, and I recognize your worth."
After speaking, she brought her lips to my ear and whispered her name, as if it were a secret: "My name is Saphyr, the spear of Zestia."
Before she could pull her face away from mine, I brought my lips to her ear, tightening my grip on her wrist: "Selyn... my name is Selyn."
Saphyr froze, staring at my tear-streaked face. She pried my hand off her wrist, but she didn't step back from that position, remaining close to my trembling body. "Selyn."
Her lips studied my name, and her eyes studied my face. I don't know what specific detail she saw, I don't know what stopped her in that instant, but I was certain I had stirred something inside her. When she began to move, however, I closed my eyes, lacking the strength to watch her blade come down on my body and sever the thread tying me to life.
"Selyn, open your eyes."
I refused to follow her order. I denied the angel the sight of my spirit leaving my blue eyes.
She grabbed my face again, but this time she pressed her forehead against mine. "I want to see your spirit."
"N-no..."
"Selyn—"
Suddenly, I felt something warm, almost burning, flow through my body and stop right where our foreheads met. Saphyr trembled and whispered something incomprehensible. I only managed to catch the final words: "...they lied."
It happened quickly: Saphyr dropped the weapon at her feet, placed one hand on my chest and the other on my face, then stared at me intensely with a confused, disappointed, and desolate expression.
"You truly are pure. You truly are innocent. I felt it. I heard the voice of your spirit."