What if we tried to create a movie script together!

P.S. Simas, please point out any flaws in this and previous texts right away.

Uh-huh. As soon as possible. As soon as I'm done with work, I'll write to you... or in the evening after six. Or everything will be ready tomorrow)

Simas

Added after 4 hours 46 minutes

Colleagues, colleague Simas is absolutely right.

I am a girl. That's one.
And can we do without this "colleague"? A nickname is enough. That's two.

Prologue
And there was darkness. And time stopped. There was neither good nor evil, only that from which they were to be restored. In this cradle of life, as the darkness began to thicken, a spark ignited. The gloom was defeated…

…The Spark, like the last star before dawn, losing, but fighting to the end. It burned with its gentle, pale flame. Dormant, it still has its role to play. Later, much later than its birth…

…A great deal of time passed, though how to say, since time has stopped. But the warmth, the light from this spark, created that which should change it all…

Regarding the punctuation... either it was intended this way, or some commas were accidentally replaced by periods, and a helpful Word then capitalized the first letters of the words following them. Because of this, the sentences didn't sound as smooth... I'm talking about:
The Spark, like the last star before dawn, losing, but fighting to the end. It burned with its gentle, pale flame.
Plus, there are phrases that would be better split into two sentences.
Dormant, it still has its role to play.
I've added the missing commas; I suggest the following version of the text correction:

...And there was darkness. And time stopped. There was neither good nor evil, only that from which they were to be restored. And, as the darkness began to thicken, a spark ignited in this cradle of life... A Spark, like the last star before dawn, losing, but fighting to the end. And the Gloom was defeated.
It burned with its gentle, pale flame. Dormant... It still has its role to play. Later, much later than its birth…

…A great deal of time passed, though how to say, since time has stopped. But the warmth, the light from this spark, created that which should change it all…

Regarding the chapter: it's better to write Invisible Hand with a capital letter. I replaced some phrases (for example, instead of "could pay" - "was ready to". Trust me, it's better this way). I added missing commas for addresses... Plus, I think that "Chapter 1" or "Chapter One" (Chapter One is better... but I'm not insisting). I removed the "and" between "sufficiently" and "decently". It sounded as if the person was dressed not only decently, but also sufficiently... about 70 percent, probably:)..
Result:

Chapter One

The young elf Albin was wiping blood from his sword. Recently, at the school of the Invisible Hand, as a gifted student, he was given a contract killing for a decent reward. A certain woman was ready to pay up to 1000 coins for this assignment; depending on how the murder went. Now, beside the elf, whose eyes were as black and bottomless as Silanna's, lay a man under the shadow of a tree - dressed sufficiently decently. The last thing left to do – Albin flicked a knife and a finger with this man's ring remained in his hand. Proof that he was killed.
Glenger is a few days' journey away. Night had fallen, and our hero decided to spend the night at an inn. In the morning, after having breakfast and watching a couple of fights, he went to the city where he was expected. He needed to reach the underground passage within a day, and it would be easier from there.
On the way, Albin kept examining the signet. Although assassins are not supposed to know who the murdered person is or what the employer's motives are, this elf was not like that. A stone was set in the platinum ring. It was so red that Albin's eyes hurt from the unfamiliarity. The whole thing was etched with runes and very strange ornaments, resembling demonic ones. The youth tucked the ring into his pocket. And continued his journey...

***
Two figures in austere robes leaned over the body.
- Do you think it was a contract?
- Most likely. This poor fellow didn't even have time to be afraid. – The man closed the deceased's eyes – Rest in peace, brother Antifiy. Then he opened a book and read a prayer, while the second prepared the slain for burial on a pyre.

Regarding the words highlighted in red:
I suggest replacement options:
Dazzling-red, dazzling-purple, deep-scarlet... or other options... Just "red" is too simple. IMHO.

Regarding the demonic hieroglyphs... Did Albin often see demonic writings? Maybe write:

The whole thing was etched with runes and very strange ornaments, unlike any known to the young elf...

I'm inclined to think that since the elf is young, he couldn't know demonic writings yet. If he studied them at school, it should be mentioned. Then it could be like this:

The whole thing was etched with runes and very strange ornaments, resembling demonic ones, which were once mentioned at school.

I removed the sentence about the runes on the inside - if the ring is completely etched, then the inside is too... and even on the stone, it turns out;)

All IMHO. No fighting.

Simas.