There was an unfathomable depth of space that spiraled onward for all eternity. Princess Luna flew through this place and finally found exactly what she was looking for. What seemed like hours went by with the blink of an eye. After all this time preparing and searching through the world of dreams. Meticulously looking through the realm while doing her duty as a guardian of sleep. She had found the only place that she had sought for so long. The Strings of Reality, a place where every single entity in the known universe was represented as bright white strings. She landed on the invisible platform and saw a bipedal Sentinel, covered in stones, standing to protect whatever threat that may pose to reality itself.
It stood up to her presence and revealed it’s large, onyx colored eyes.
“Luna? It’s been so long, nearly thousands of years since you last entered this place” it said with a deep, grating voice.
Luna stepped up to the tall, rocky golem and touched the rough skin it had. It had been a good while she had seen the Sentinel. She remembered it like it was the first time she entered ponies dreams. So young she was those many years ago. But, now was not the time for sentimentalities, all she wanted now was to do what she came for. Luna stepped back from the golem and stood, waiting for him to move out of the way.
“Ah, I know why you are here, but is that what you really want, something so callous as to do that to somepony you care about?”
Luna stomped the ground in anger.
“It must be done, a thousand years I was on that Moon. If I could undo it, then I would give anything for it to never have happened.”
The Sentinel scratched its chin and stepped out of the way. Luna went through the white portal, it sucked her in like a suction pipe. Luna opened her eyes and saw a row of white strings that were connected from each other while surrounded by a endless vacuum of grey space. On each line she could see the specific aura of all beings that currently existed. She trailed through the long line until she felt a energy she recognized. With her eyes set on that part of the string, as she got close, she saw the pinkish-white power emanating from that certain piece.
Luna raised her horn and with a powerful spell sliced the line from one end to another before that exact single strand disappeared out of thin air. The dimension shook from the change in time and space and Luna reconnected the line to set things back to normal. With that done and nothing seemingly out of the ordinary happening at the moment, she went back to the portal and exited. The golem awaited her at the end and he looked at her with an empty stare. Luna awaited any words of discouragement while the Sentinel continued to watch her.
“What, no scolding for changing the fabric of reality or any consequence whatsoever?”
The Sentinel made a deep belly chuckle, he went up to her and bent down on his boulder-sized knees.
“Oh Luna, I’ve been watching you for so long, you really are one strange Goddess”, he said as he smiled at her confusion. “Nevertheless, all you need to do now is… wake up.”
With a snap of his large fingers, Luna rose from her bed that she rested on. It was dark and outside her window was the moon glowing as brightly as ever. Her room itself seemed the same, nothing seemingly out of the ordinary. She left the bed sheets and went to the mirror that sat on the dresser she had. She saw herself as Nightmare Moon, her skin hair as dark as the pitch-black sky and her eyes those of a predator’s. It seemed fitting that she would return home in this form. She did do something that completely messed with existence. Though, she didn’t mind being able to walk freely in that body.
Luna exited her room and trotted down the hallway as happily as she could. What more surprises could be in store for her? This was truly the greatest idea she had ever conceived. Continuing onward, a door screeched open from the room next to hers. Emerging from the room, came King Sombra with an evil yawn. He seemed completely naked without his usual regalia and awoke from the hoofsteps she was creating.
“Good morning dear…” he said with a tired sigh. “You seem to be in a good mood today, what is it that you’ve been dreaming about?”
Luna leaped back from him, surprise slammed into her dumbfounded face.
“Uh… Sombra!?”
Luna looked around, waiting for an answer to pop into her skull.
“Hmm, you seem rather surprised dear, did you expect somepony else?” He said with a raised eyebrow.
Luna looked down and scrambled for something to say.
“Um, no! I was… just going to get a bite to eat! Would you like something when I get back?”
Sombra fully opened the door he resided in. He smirked a bit, realizing exactly what he thought Luna meant.
“Oh, hmmm hmmm, so you want some more action, oh I can barely remember how hard you got me two nights ago, aching for more aren’t we?” Sombra licked his lips to the memory of Luna’s loving embrace. “Yes, you definitely want that aire as quickly as possible don’t you dear?”
Princess Luna blushed feverishly at the very thought. She gave a nervous smile before walking away.
“I’ll! Uh… bring us something to eat! And such.”
Luna’s walk turned into a half-sprint to the Royal Kitchen. There, she backed herself to the wall from Sombra’s horny eyes.
“Don’t fret! I’ll make you a mother as soon as you return!” Yelled King Sombra, before screeching the door closed.
Luna looked around for anything that could be of use. She looked and saw a pan hanging from the kitchen hanger and smashed it against her head as hard as she could. Stars started surrounding her head before she fell to the ground with a kerplunk.
The stone Sentinel stood watching, ever against the tide of reality and it’s unceasing wake. Flying from afar came Princess Luna as fast as she could. She landed and ran forward to the Golem as it stood motionless.
“Please! I’ll do anything, Undo what I’ve done! Please!” She said desperately.
The stone golem turned his head slightly and pointed to the opposite direction.
“Don’t tell me, tell her.” It said.
Luna turned around and saw the image of Princess Celestia, phasing in and out of reality like a ponified anomaly near where Luna originally landed. She had a stern facial expression of anger. Luna went up to her and lowered her head in shame, it was enough that she deleted her sister from ever existing. She fell down, helpless and in pain.
“I can’t Tia, I don’t know what to think anymore. Those thousand years were a nightmare and I would do anything to never have endured such a literal hell.” She said while crying tears. “I just wish that things were different.”
The image of Celestia came up to Luna and lowered her head to the sad alicorn before her. Caressing her head against her, Luna felt warmth from the touch and a happiness that was paramount. The image then disappeared to show a little golden string floating from her original presence. Luna picked it up, and held the string to her heart. She finally realized what she had done. She swept the tears from her eyes and went to the Sentinel.
“Now go, your sister is waiting for you.” He said as he moved out of the way.
She went forward with no regrets.
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Eyes awoken to the brightness of the day, Luna stirred from her slumber and saw none other than the sun outside as it should be. She leaped out of the bed and went full sprint out of her room.
To which she screamed, “Tia!” All the way.