Original Link:
https://docs.google.com/document/d/1kDyZL3U7AuQcjguTvF0KZiWFzFKEJ5YBBilivqww4-0/edit

“How could it come to that accident?” Celestia wondered in a bit of shock as she heard of the recent nightly events the next morning.

“W-w-we d-don’t know... the... scaffolding j-just... collapsed... f-for no reason,” one of the witnesses stuttered, still traumatized from the impressions.

The Princess of the Day was aghast. Every single one of her subjects was precious to her and like most of the staff in Castle Everfree, she knew the victim very well. He had a very friendly and deedy personality. His sudden death hit her quite hard.

“Your highness... we can’t let the griffon empire wait,” Emerald Dream reminded her carefully with condolence in her voice.

“I know, my dear maid... the death of a single pony must not be a reason for me to overthrow my plans,” Celestia replied. “It looks like my sister finally gets her will. Emerald. If it is not too much to ask, I would like for you to assist and remind my sister of her duties.”

“No problem at all, Princess! What do you want me to do?” the maid agreed.

“I want you to go to my sister at sundown and inform her that I will not be able to return in time to perform the exchange of sun and moon with her. We will have to do this synchronized over distance. Therefore, she shall begin to raise the moon at 10 PM. Next, I wish for you to come back to her at 4 AM to remind her that she needs to make way for the dawn. As for the rest of the day, you will be in charge for the castle,” Celestia explained.

“Sure thing! Have a good journey, Princess!” Emerald Dream spoke.

The demi-goddess of the sun turned around and started walking. She was worried, but not because of Emerald Dream. Her concerns were because of Luna. For a while now, she started acting very irresponsible. Celestia couldn’t even entrust her to be able to perform her duties anymore, which is why she sent her personal maid to her assistance.

Celestia just hoped that her sister wouldn’t demand strange things from Emerald Dream. She was completely clueless of the events that would follow.

---

As the sun went low, Luna awoke from her slumber. Or rather what was left of Luna.

Everything she experienced and did yesterday was too much for her to handle. The shock, the desperation, the hate, the high expectation, her murder and the satisfaction it brought. A part deep inside her knew that what she had done was wrong in every possibly imaginable way. But it was far too small in comparison to her hatred, her craving for revenge and its pleasure to influence her.

By now, Nightmare Moon made up more than half of Luna’s mind. Luna herself did not even realize that she had lost control and although she remembered her actions, she denied them. This only caused her to hide herself even deeper inside of what was left of her mind.

In the next hours, the de manis will gain full control over Luna’s mind and body, reducing the demi-goddess of darkness to a tiny spot in the far back of her mind.

The large dark blue body lifted out of her bed, which was soaked in black tears. Luna did not even care about her appearance anymore. She just got on the way to her throne room without brushing her mane, tail or applying any makeup. On the way, she left behind a trail of black tear drops.

No thoughts were running in her mind. She was just sleepwalking in awake state, Nightmare Moon controlling her steps.

The de manis was patient. She did not want to ruin her chances and simply kept supporting Luna until she willingly entrusted her body to Nightmare Moon and retreated into her mind on her own. After what she made Luna do yesterday, it was only a matter of time now anyway.

“We will get our revenge,” a mixed voice of Nightmare Moon and Luna spoke in the demi-goddess’ head.

The notion brought a wicked grin to her face. Yes. Revenge. It seemed so appropriate in return for making Luna reduce to what she is now: a broken, fading personality whose only companion was a voice stuck in her head.

The Princess of the Night placed a front hoof on the large door to her throne room. But she hesitated to open it. Nightmare Moon could sense a presence on the other side. It was yet too early for her to be discovered. She did not have full control yet. So, she pushed Luna back in the foreground, letting her wipe away the black tears and relax her expression.

---

The door opened and Princess Celestia’s sister entered the room. Emerald Dream sighed in elevation as she realized she came in time. The maid would have hated to wake her up.

“Ah! Good... eh... evening I suppose? Yes. Good evening, Princess!” she greeted warmly.

Luna entered without a comment and went straight to her throne. Though Emerald Dream kept grinning happily until she went right past her. The maid was a naive and overly cheerful one. She didn’t mind the fact that the dark princess did not greet her back. But she did mind the expression she had on her face.

It was a really odd one in Emerald’s opinion. She tried to look neutral, but... she wasn’t. It seemed forced. As if she put all her strength into trying to keep this expression. This confused the maid so much that her trademark smile vanished from her face. She waited until Luna had sat down, then she delivered the message from Princess Celestia.

“Your sister can’t be here to exchange sun and moon with you. I was told to inform you that you are supposed to raise the moon at 10 PM, which is in twenty minutes. At the end of the night, the moon is supposed to go down at 4 AM. I will come back to you when the time comes,” Emerald explained.

Again, Luna remained mute. She didn’t even look at the maid and just stared straight down the corridor to the stairs. Emerald Dream wasn’t sure what she was supposed to do. Was the Princess of the Night always like that? She already expected that, since she is pretty much the exact contrast to her sister, she would be a lot different. But she did not expect something like that. Finally, the maid took a heart to speak up again.

“Is... is there anything I can do for you, Princess?” she wondered.

Luna slowly shook her head. At least she reacted now and proved that she was listening. But still, this was a very uncomforting situation. Somehow, Luna seemed to emit creepy vibes, as if there was something foreign and unnatural about her. Something that did not belong in this world. Emerald started feeling nervous.

“So... well... um... I’ll get going then. I-if you need anything, just let me know!” the maid spoke and left the room, faster than she usually would.

As soon as Emerald Dream was gone, Luna lowered her head into her front hooves and began to cry. Moments later, her crying slipped into laughter.

“So ridiculous. This is so ridiculous,” a mix of Luna and Nightmare Moon spoke in her mind. “Who do the ponies think they are to command us like this? Celestia claims that we are selfish. But we wonder: who is truly the selfish one? Us? Them? Or her?”

Luna slowly rose her head again. Within seconds, her front hooves had become covered in the black substance the de manis exuded through her eyes. The grin returned to her face as she stared at it.

“Trust me, Luna. Let me guide you. Let me control your body. I will make sure that your wishes will be granted,” Nightmare Moon spoke in the demi-goddess’ mind.

Luna tilted her head back until she was staring straight at the ceiling. The world seemed to spin around her, which only was even more amusing to her.

“You created me for this, Luna. You created me with your desperation and anger. Along with you, darkness itself is crying in fury. These selfish ponies, your selfish sister and that selfish light all enslaved you,” the de manis continued.

The Princess of the Night kept on wobbling from left to right more and more until she ultimately couldn’t keep her balance anymore and fell over. Then, she just kept laying there, grinning widely with bloodshot eyes, black tears flowing down her throne and breathing slowly.

“With my creation, darkness is delivering a message. It will no longer tolerate this treatment. Yours, as well as its own. I am here to give darkness a way to relief of its hatred, through you. I am the manifest of darkness’ fury. Its evil and sinister side. For it cries for justice and punishment,” Nightmare Moon explained.

Luna didn’t know for how long she was laying there. It seemed like an eternity, but at the same time, like seconds. The more the de manis spoke, the further Luna retreated into her own mind, mutely agreeing with everything she said.

“We crave, Luna. We both crave for punishment. Our hunger for love and attention has become replaced with one for dread and horror. But we will not starve. Too rich is the menu presented to us. Let us feast, Luna. We will sate our appetite. We will bring terror to this world in a scale that will make Discord look like a harmless jester,” Nightmare Moon suggested.

Luna’s stomach started growling. Greedily, she licked over her teeth, only to realize that they suddenly became jagged and sharp. Her eyes wandered up to her horn and she realized she did this to herself with a spell, as she saw it glow.

“Sleep, Luna. Sleep and let me make your dreams come true. Allow me to give you your well deserved revenge,” the de manis requested.

Luna’s eyes slowly fell shut and she fell asleep. But just minutes later, she suddenly woke up again. She lifted her head and sat up again, eyeing up her body. Several more minutes later, a pony entered her throne room.

“Hi, Princess! I am here to remind you-” Emerald Dream started, but stopped immediately as she noticed the crazy expression on the dark demi-goddess’ face.

Luna was staring at her with huge bloodshot eyes, tiny pupils and humongous grin with sharp teeth. As the door behind her suddenly slammed shut by magic, she realized she should have turned around and ran away while she still had the chance.

---

As soon as the royal carriage landed in front of Everfree Castle, Celestia jumped out of it and trotted inside the castle with an expression full of anger. It was 3 PM. The night should have ended many hours ago, yet the moon was still high up. As long as it remained there, the sun could not be raised.

By now, the entirety of Equestria was wide awake and heavily confused to still find themselves in nighttime.

On her way through the castle, Celestia’s anger cooled off a bit and became replaced with worry as she realized that all the staff were missing. Confusion became added as she found strange black drops on the floor, leading to Luna’s throne room.

The closer she got, the more she could find. Finally, the bright demi-goddess was just in front the door to Luna’s throne room. She could hear strange noises coming from the other side. Gagging, breaking and dripping sounds. Moist squishing and rattling.

Celestia opened the door.

Luna was sitting on her throne, an expression of total insanity written on her face and covered in blood. Widely spread all across the room were the countless corpses of the staff, violently torn open, broken apart, partially eaten or nailed to the walls or ceiling with magical bolts. Their blood dyed the whole room into a terrible crimson.

In front of Luna hovered Emerald Dream. Her legs and jaw were broken, her glasses destroyed and a big glass shard stuck in her left eye. Her coat was burnt and her mane torn off, revealing the skull. She shook heavily in agony while Luna used another glass shard to make long slow cuts all across her body. Yet she was too weak and traumatized to give of any more than gagging and rattling sounds.

Celestia remained motionless and mute, staring in disbelief at her maid and sister with open mouth. After they both realized that the Princess of the Day was present, Luna decided to ram her horn into Emerald’s right eye, quickly sliding in deeper and deeper.

The maid could only twitch one last time in pain. Then she just hang there midair as Luna’s horn pierced her brain.

The horn retreated from the corpse, fresh blood running down from it and Luna refocused Celestia, grinning at her hugely with blood covered fangs. Then she used her magic to twist Emerald’s head several times in circle. With multiple loud cracking and tearing noises, the head finally ripped off, a stream of fresh blood running out of it.

Luna tossed the head over to her sister, making it land right in front of her. Celestia stared at it in horror, collapsing to the floor and starting to cry.

The sight made Luna laugh a bit, but her focus quickly returned to the corpse. She sank her fangs into the torso, tearing out a large piece of flesh, chewing and swallowing it.

Celestia observed this with a complete lack of words. These were horrors she had never seen before. As a mighty demi-goddess, she never thought she would ever get into a situation where she would feel fear and disgust like that. After a minute of fighting the urge to run away and throw up, she finally found the strength to speak again.

“Luna... why?” Celestia spoke in a hoarse voice.

The Princess of the Night refocused her again, canceling her magic and letting the corpse fall to the ground.

“I am not your sister. She is gone. My name is Nightmare Moon, the de manis. I am the incarnation of darkness’ hatred and Luna’s desperation and insanity,” Luna replied in a foreign voice.

Another wave of shock bolted through Celestia. She had no idea her sister’s situation was truly that bad. All the time, she misjudged Luna’s needs and requests. Now, she had fallen to an extreme form of insanity and even denied her own name.

“L-Luna... please... come back to your senses! You do not have to do this! I... I promise I will not be mad at you and forgive you for this. J-just... just come back! We can talk about this. We can talk this out!” Celestia pleaded.

Manic laughter broke out of the Princess of the Night in response. After a few seconds, she stopped laughing and got up from her throne, slowly walking towards Celestia.

“Do you not think it is a bit late for talking now? You had centuries full of opportunities, but all you cared about were your precious subjects. Your arrogance - Light’s arrogance - has driven your sister to complete desperation. Her solitude brought her to the point where she tried to create an artificial companion. While she created me, she spoke out a wish. A wish for punishment. A wish for revenge. Now, I am here to fulfill this wish,” Luna replied.

Celestia slowly backed away the closer her sister came. Of course, Celestia was very powerful. But so was Luna and in her current situation, she was completely unpredictable.

“Oh, you do not have to worry, Celestia. I will not kill you. Not yet,” Luna commented. “Your punishment needs to be the heaviest of all. I want you to fully realize the error of your doing. I wish for you to see the full scale of disaster your arrogance caused. The tyranny of light ends now. Darkness shall dominate the world and you shall observe while I slaughter your dear children.”

Now, Celestia was forced to act. She could not let her sister continue this bloodbath. She needed to stop her.

“No... please, Luna. Do not make me do this,” Celestia begged while her horn began to glow.

“You really do not understand it, do you? This body is not your sister’s anymore. It is mine. Therefore, I shall shape it in the ways I want,” Luna explained and readied a spell herself.

The black tears coming from her eyes now started spreading all over her body. A dark aura built up around the demi-goddess of darkness. But it was not the regular black darkness of Luna. The aura was red and quickly clustered up around the princess.

While the black liquid covered Luna’s entire coat and caused her to grow, the red darkness fused with her mane and tail. Soon, it re-merged with Luna’s powers, causing her mane and tail to become a strange blue spectral mass. Finally, a blue armor appeared around the dark demi-goddess’ body, consisting of a helmet, chestplate and leg guards.

All along the transformation, Celestia was just a bystander, observing in dread while her sister changed. After she was done altering her appearance, her eyes shot open again. For a short moment, they were colored in a strong evil red. But then they too became blue.

At this moment, Celestia realized that her sister wasn’t just talking senseless things out of her insanity. There really was something inside Luna. Something that controlled her. Something abysmally evil.

The Princess of the Day decided to attack. She somehow needed to stop this thing that had taken over her sister. So, she fired a powerful beam of light. But the creature easily countered her spell with an at least as powerful dark beam.

While they were still casting their spells, Luna... no... Nightmare Moon cast another one. Celestia’s own shadow suddenly turned against her and pinned her against a wall. She really did not see that coming.

It would have been easy for Nightmare Moon to kill Celestia now. She was unable to move and the shadow even canceled any spell she tried to cast. But that would have been too easy for this arrogant demi-goddess of light. The de manis just stepped in front of her and grinned at her sinisterly.

“Remember this face, Celestia. For it shall haunt you in your nightmares. Today dawns a new era of horror and violence, of blood and insanity. My wrath shall not end before every last pony has found a gruesome death. Keep in mind, Celestia, that this is your fault. Everything that happens from this moment on is caused by you and your ignorance,” Nightmare Moon promulgated, teleporting herself away as soon as she finished speaking.