Return of the Lost

A long time ago, before Celestia and Luna. When Equestria was at constant war, a pair of unicorns had a son, whom they called Lux. Lux was born, being different from the others. He had wings and a horn, noticing that, both parents decided to move out of the village, before the word spread, worried about what the other ponies would do to his son.

Lux had a gray coat, his eyes were blue, and his mane was a rainbow of gray shadows, his size was not average, by the age of five he had the size of a teenager.

With the passing of time, Lux began to learn magic, his mother taught him the basics, while his father taught him offensive magic without mom knowing, of course.

When he was thirteen, Lux had already mastered the magic his parents had taught him and started to create some spells of his own. But not only that, without help from anypony he learned to fly, his parents explained to him that others might fear him because of the power he wields, so it was safer for him to stay far away from everypony, this made Lux sad, but he didn't want any problems with his parents, or cause any issues to them.

Time passed, by the age of twenty, his parents told him that he was going to have siblings, Lux was happy, that his little family was getting new members.

Lux's mom was quite young. She had become a mom when she was just seventeen, and now she was going to have two foals, after twenty years, on the other hand, Lux's father was forty-five years old, and he was afraid of being a father again.

Ten months after the news, a storm that could only be described as "apocalyptic" attacked the forest where his family lived, Lux saw the culprits, while they were leaving.

When the storm dissipated, Lux found his parent's corpses under the foundations of his house. Before leaving, Lux heard something crying, his sisters being embraced by both parents.

A couple of months later, Lux had learned that the Pegasus were responsible for the death of his parents. What angered him the most was the fact that the storm was destined for a city of unicorns that was passing through the woods. His parents died for nothing.

The hatred of Lux was growing every second, Lux wanted to go and destroy the Pegasus, The only thing that kept Lux sane and on the line were his sisters, One of his sisters was almost as big as when he was a colt, the filly had a white fur, white wings, white horn, and a pink mane and tail, his other sister was smaller, her fur was a dark blue, her mane, tail, wings, and horn were a lighter blue.

A short time later, Lux helped a unicorn in distress. His name was Stein, the unicorn marveled at the appearance of Lux and the strength it showed, without letting Lux refuse, the unicorn swore eternal loyalty to Lux.

Lux lived in the forest, inside a cave. Most of his supplies were stolen, such as milk for his sisters, diapers, medicine, etc.

Stein, who had joined the group recently, played the role of nanny, Stein was happy to take care of Lux's sisters, he considered it the highest honor. Stein's admiration for Lux was toxic, no matter what Lux did, Stein saw it as the image of pure perfection.

The arrival of Stein to the group only brought more anger to Lux; Stein explained to him the social separation between the tribes, war, death. Everything he had suffered was thanks to the selfishness of the tribes. His parents had died only because of the stubbornness of the tribes.

Stein realized that Lux was holding back the anger within himself, that the fillies under his care were the only thing that kept Lux from leaving and destroying the tribes. At that time, Stein decided to avoid telling Lux more about the tribes, not protect them, Stein himself would burn the tribes just to make Lux smile, but he did not want to see his master suffer anymore.

The first birthday of the fillies was approaching, Lux with the help of Stein had given both fillies names, the white filly Celestia, and the blue filly Luna. Lux explained that over time he forgot to name his sisters.

A couple of months after the birthday of Celestia and Luna, while Lux went for food and medicine to the nearest city. Six ponies attacked the cave where Stein was, Stein managed to stop them for a while, but in the end, his attempts failed. Lux arrived a couple of minutes later, the first thing he heard was a pair of ponies hitting Stein, while one of the ponies said "Hey guys, Can I have some fun with the fillies, I promise, I won't break them too much!", at that moment the darkness on Lux's heart took control, for when he opened his eyes again the six ponies, were dead.

Stein survived, beaten to the point of almost dying, took a couple of months of intensive care from Lux to recover, Celestia and Luna did not receive any damage, Stein was successful in preventing the ponies from getting too close to the poor fillies, Lux, on the other hand, had been having nightmares since that day.

The nightmares were getting worse; he saw himself as a demon of destruction. Over time, Lux came to realized that it was not all the ponies that deserved his hatred, only those that had brought the current society to the bottom, but in his nightmares, he destroyed everything and everypony, including his sisters if they ever came to oppose him.

That Night

"Stein, I do not know if I can continue with this" stated Lux with dark circles in his eyes, you could tell he had a couple of days without any sleep.

"Do not say that! Your sisters need you! I need you, what is a faithful servant without his master?" Stein answered with tears in his eyes.

"A free pony ?, I thank you for your loyalty, but if I stay, I will end up destroying this world, and although it would make me happy because those guilty of my suffering would be paying, I would also become what I hate the most" declared Lux crying.

"Those nightmares mean nothing!" Shouted Stein with pleading eyes staring at Lux.

"No, these nightmares are getting heavier, and every day I think more and more of in how to kill, destroy and enslave everypony," answered Lux looking at the moon.

"Then destroy them! Enslave them! Make them pay for your suffering! Make this world your canvas and paint it with blood!" said Stein crying in a mixture of anger and sadness.

"Your wish that I stay, it's almost psychopathic Stein, but I refuse to destroy the world," answered Lux sadly.

"Then let me go with you, the day you saved me from those thieves, it was the first day in my life that I knew what it was like to have hope, being born poor being a Unicorn is a capital sin for my tribe, every day I was beaten, raped, I could never refuse, if I wanted to eat, I had to obey, but that day, the day you arrived, saving me from that cruel destiny, you gave me a roof, a purpose, you taught me how to fight, you taught me what it means to be happy, so if you want to disappear from this world, I will accompany you to the depths of Tartarus, master" said Stein with a firm tone.

"I know it sounds selfish, but I'm glad, I will not be alone, thank you, Stein" answered Lux hugging him.

"I will always be by your side, master, as long as I live, you will never be alone." Stated Stein crying in Lux's chest

After deciding to protect the world from the darkness inside of him, all that remained was to get a good place for his sisters, someone to take care of them and guide them along a path of harmony, after a couple of months, he began to hear about a wise and powerful unicorn. His name was Starswirl the bearded, according to the rumors this unicorn traveled from place to place fighting with demons, sirens and other creatures, there were also rumors that this unicorn was looking for a way to unify the tribes under a single banner for peace and harmony.

Lux decided to investigate Starswirl the Bearded, after following him for a long time, he concluded that he had found the teacher, father, and guide that his sisters needed.

"It seems that he is a good choice master, he is powerful, wise and fervently seeks a way to bring peace to this rotten world," said Stein looking at the unicorn through a mirror made of magic by Lux.

"Yes, his way of living, his desire to bring harmony and peace to this world, his knowledge in magic, he will be a great teacher and father figure for them" answered Lux looking at his sisters sleeping.

"What is the plan ?, I do not think, that he will accept a couple of fillies without asking for an explanation," asked Stein, looking at Lux.

"That's why he will not see us; I have the spell ready to send them to his house, the spell will not leave a trace, for him, my sisters will be a miracle, the answer to his question of how to unite the tribes" answered Lux while preparing the spell.

"I see, to think that in two months, Celestia and Luna will be two years old," said Stain, while caressing the fillies.

"I'm ready, step aside Stein" shouted Lux with tears of pain in his eyes, at that moment Stein could notice in Lux's eyes his soul breaking into a thousand pieces.

"Right away," replied Stein, moving away from the fillies with tears in his eyes.

With a glow both Celestia and Luna disappeared, appearing inside the house of Starswirl the bearded, after a couple of hours the unicorn came to his house to find both alicorns asleep on his bed, for a moment began to search everywhere, wondering who could have left them, at that moment a parchment appeared in front of him.

"My dear, Starswirl the Bearded, your achievements have reached my ears, your mission to unite the tribes, your desire to stop this stupid war and more ... My main intention was to leave my sisters without any trace of who I am or where am I, But I was weak, I could not follow my idea apparently, before you start looking for me, I can not take care of my sisters, a long time ago something traumatic happened to me, and thanks to my ignorance at that time, I allowed the darkness plant roots inside of me. Like my sisters, I am also an alicorn, but this gift is a double-edged sword, the darkness in our heart grows and without us realizing it takes its own form, use this information to prevent my sisters from falling into the darkness like me, and I know I've asked for a lot from you, but, do not tell them about my existence, the one with the white fur is Celestia, and the other one is Luna, in fifty-four days they will have their second birthday.

Lux L.

Lux, without knowing had given him an idea, with the scroll that he had sent to Starswirl, it was what later brought the idea, to the unicorn to create the elements of harmony.

Five years later, the seal was ready — a seal strong enough to seal him and Stein for all eternity.

"I'm ready, Stein, are you sure you do not want to live a normal life, get married, have some foals or fillies of your own?" asked Lux, as he prepared the spell

"No, being with you, accompanying you for all eternity is my only wish," answered Stein, with a serious look

"Have I told you are crazy, right?" Lux said with a sad smile

"Excuse me, for asking this again, but in five years, nothing has happened, are you sure that your darkness is growing?" asked Stein, trying to convince Lux to stop the sealing

"Yes, the reason why the world is still standing is simple, I have contained the darkness in my heart with magic all this time, but that has a limit, I calculate that in two or three months I will be swallowed completely by darkness" Lux answered with an empty look

"I understand, I'm ready, master" declared Stein

"Me too, get closer." said Lux preparing to cast the spell, to seal himself and Stein together "This is your last chance, Stein, after this there is no going back."

"I've never been so sure of anything in my life," Stein answered with a warm smile.

"Ogh argi eta iluntasunean betiereko loaren argitan jarri gaitu," said Lux concentrating his magic in the magic circle that, was, appearing around them, while he repeated the spell over and over again.

The earth trembled, and for a minute there was a total eclipse. With a glow of light, both Stein and Lux were absorbed into a mountain, and in the center, a crystal was created which contained both ponies, the crystal was black, so deep that you could not see anything through it. The seal had been completed.