Twilight Sparkle was no ordinary pony. No, she was much more than that. She is princess Celestia's most faithful student. She also is one of the element bearers, which she had achieved when she and her friends had defeated Nightmare Moon. Twilight didn't know why, but she always feelt like she had made a mistake that day. Twilight had obviously just shrugged the feeling of, but it would constantly pop up every time she thought of that memory.

She and her best friends; Applejack, Rainbow Dash, Pinkie Pie, Fluttershy, Rarity and Spike who is also her number one assistant, where on the way to an empire that were believed to be an myth, at least to the ponies that are alive today, apart from princess Celestia and Luna that is. Twilight was excited to see this empire as she had never heard of it at all.

They were on the train talking about the empire how it would look like, and how they were gonna help the princess and prince. Twilight chuckled softly, her brother is the prince and her sister-in-law is the princess. Twilight had been at their wedding, but there had been som complications...

Spike had one day ran towards Twilight and her friends who were having an picnic at an tree near Sweet Apple Acres. Twilight at first had been confused because she didn't know who was getting married, but then Spike sheepishly gave Twilight the letter she should have read first. Her eyes had widen when she read her brothers name. They had rushed to the train station, and headed towards Canterlot. When they got there, Twilight confronted her brother about not sending the invitation or telling her personally as a 'family' thing. She would have felt more happy if it was directly from him, but there was an threat and that was why they were cautious. Twilight never faulted him for that, since it did make sense. Twilight had realized quickly that the Cadence they were working to help wasn't the real Cadence, Twilight tried telling the others but they didn't believe her. Twilight, then found the real Cadence, after being sent to an cave that was under Canterlot Castle. Twilight came with the real Cadence, obviously to the confusion to everypony else. It was revealed the fake Cadence was an Changeling queen and wanted love so they could be fed. Twilight had scoffed inside her mind when Applejack had apologised for not believing her. Twilight had wanted Queen Chrysalis to win, but sadly, she lost.

Twilight chuckled inside her mind at the memory. She just wished Chrysalis had won. She could have then lived freely.

Two hours later, and Twilight walked out of the train together with her friends. There were pony guards that walked up to them. Thwy were light purple-crystal armor that covered the hooves, chest and head. One of them were bulkier in the muscles and Twilight knew it was her brother. Twilight walked up to him elegantly and hugged him quickly.

"Hello BBBFF, I would have hugged you longer, but I feel an evil presence." Twilight said, making Shining look at her surprised, which then turned into an proud smile.

"That is right, there is an evil presence here that is trying to get into the empire. In other words, we have to move." Shining said, making everypony nod their heads and started to walk quickly towards the border of the empire.

When they were halfway there, they were attacked by some shadow-smoke like thing. Then they heard an evil voice tell them. "You can't keep me out forever. I can let you live, as long as I get the empire." Shining turned and shot an spell towards the smoke, only to be damaged with an spell that grew small black crystals.

Twilight liked this. The dark magical aura, made her feel welcome. She was snapped out of her thoughts when Applejack shouted; "Twilight! Come on!" Which made Twilight turn around and run after them.

They ran the last part with such speed, they believe they broke an galaxy record. Twilight was disappointed that she couldn't stay in the dark presence for longer. She always felt like she was home when she felt an dark aura around her. The others believed it to be her being in shock, which she nodded towards Applejack, lying infront of her face. It was by no means, a d easy task.

"Come on!" Shining said, catching everypony's and dragons attention. "The palace is not far from here.

They nodded, and followed him. When they had reached the palace, they saw guards that were crawling all over the place. They walked through the amazing crystal-made palace, to which Spike fell in love with because it was one large gem, and Rarity because it belonged to royalty.

When they reached the throne room, they saw the two large thrones that princess Cadence and prince Shining Armor use. Princess Cadence sat on the throne looking very weak, and thin. She keep using her horn to protect the empire from the evil presence. She walked down towards Twilight and they sang their song and danced.

"Sunshine sunshine! Lady-bugs awake! Clap your hooves and do a little shake!" Cadence and Twilight chorused while doing their dance. They laughed when they finished, Cadence's being genuine, and Twilight's being forced but nopony noticed.

Twilight tuned out from all the talking her brother and sister-in-law were doing. She had absolutely no interest in helping them in all honesty. She wanted to know who the voice was from the shadow smoke. She knew she would draw suspicion if she asked them, but at the same time maybe not if she asked with curiosity. She was suddenly brought out of her thought when she heard; "Twilight...?" Twilight looked up and around, and saw that everypony was looking at her.

"Oh, I'm sorry, yes?" Twilight said, with an fake sheepish smile.

Her brother and sister-in-law smiled fondly at her and giggled. "I suggested that I lead you to the rooms, then you could try do something to cheer up the Crystal Ponies." Shining said, making everypony agree.

Twilight nodded and followed her brother and friends to their rooms. Twilight's room had been specially made for her. On the floor was her cutiemark that stretched the whole floor, but looked very powerful. He bed was in the middle of the bedroom wall. Her bedsheets also had her cutiemark, that boldly showed the stars. She had two shelves filled with books about the Crystal Empire, which peaked her interest. She sadly didn't have time for that, and quickly left her room. She gathered with her friends at the entrance of the palace, and started to decorate the empire.

A few hours later, thwy were finished. They had started to ask the Crystal Ponies about the Crystal Heart, which they had been informed by Cadence and Shining armor. They had prayed one of the ponies had seen their tyranny ruler hide it. They only had one problem... they didn't know who this 'tyranny ruler' was. The Crystal Ponies refused to speak about him or his name.

Twilight was unsure herself. She suspected that it was most likely an pony that had been lost in time, except for the Princesses. Then Twilight's eyes widened. She remembered princess Celestia talking about a unicorn named King Sombra! How could she have forgotten?

AHAHAHAHAHAHA

Twilight heard the laugh, but it sounded so far away. She looked around the room, but she didn't see anypony. She was currently in her room, reading journals that didn't have an author it seemed. She assumed it was King Sombra's, since the writing seemed to be from an ruler of sorts.

"I see that you are interested in my origins." A voice said, which made Twilight shiver, but she wanted to feel this darkness. It just felt so right! "I'm not interested in talking about my whole upbringing, but I will tell you one thing; were not so different from each other. You are a beautiful mare, that thrive for knowledge and power. You definitively seem more comfortable in the dark than the light, which proves that you are on the wrong side.

Twilight smiled. King Sombra was right. That is what she truly wants. She wants knowledge and power. "Yes, that is correct. Where are you? I don't see you, and I don't think Cadence put down the protections around the empire." Twilight said, making Sombra chuckle.

"You have natural darkness in your heart. That is how I'm speaking to you, through your head. You are correct, that little princess hasn't put down the shields, but that will happen when she runs out of power." Sombra said, making Twilight slowly grin.

Twilight felt like she was where she belonged. She didn't care about 'saving' the ponies or the empire, she wanted King Sombra to win. Her darkness had began when she started studying dark magic, then she stopped using light magic altogether. She did do it around the princesses or somepony who knows magic well.

"I want to help you my King." Twilight said, bowing in respect of the king.

"That my subject, I know. I will let you also. The Crystal Heart is on top of the palace, I need you to destroy it completely. Sombra said, making Twilight bow once more.

"Yes my liege." Twilight said, from her bowing position.

AHAHAHAHAH

Twilight heard the fading laughter until the room was completely silent. She closed her eyes and then opened them. Her eyes were green, and she had purple spark flowing from the side of the eyes.