Darkness in the Heart

Inside of everyone's heart is light and darkness. However, sometimes one side can overcome the other.

It was a sunny day in Canterlot- no, it would be a sunny day, but a mysterious shroud of darkness covered the skies over Ponyville and Canterlot. It wasn't very mysterious when they figured out the cause- it was him. He had traveled a long ways from his home, but while he walked there, he learned some new powers.

Princess Celestia was sitting in her throne. Nothing was happening. She knew what was going on outside. She knew she would be last. She was just waiting for him to attack. She was defenseless against him. But at least she can damage him. She was waiting for that door to be slammed open and for him to come in. She had to keep her defenses up, or else he would overwhelm her. She heard a sound in the hallway outside of her chamber. She prepared to use her magic. Then, she heard even louder noise. Then another, even louder. She could identify that something was slamming the door. Then came the final noise. The door was knocked down, and, standing where the door used to be, was a black stallion. He was unicorn, and he was fully black. He had dark black fur and an even darker mane. He had a black, broken heart as his cutie mark, but it was almost invisible due to his dark fur. He was smiling  in a sinister fashion. Princess Celestia said, "You're here... I thought you would be coming sooner."

"Ah..." he said. He then turned into a dark presence just like the shroud that covered the sky and floated to her at a very fast speed. It was... pure darkness, in a form similar to smoke. When it was right next to her, he turned back into the dark stallion. "I had some... business to care of. Let's just say that the town down there..." He turned back into the dark smoke. He went to Celestia's balcony and turned back into a stallion again. Pointed down to Ponyville. "...Let's just say it's in mine now."

Shit, he's already taken Ponyville., thought Princess Celestia. I guess the elements defeating him is now out of the question... "What the hell are you?!" Celestia yelled.

"I am darkness!" he yelled back. "I am the darkness inside of your heart and all else's! I am hate, death, and war! I am nothing; I am everything! I am darkness, and I shall embrace it!"

Celestia had a panicked look on her face. She was truly scared of him. She felt her stomach churn.

"So," he said, calmed down. "I pretty much have everything now. And nothing can stop me. Except you. Now, I'll make that not be an option anymore..." He made a huge smile and turned back into darkness. It then went over to Celestia and engulfed her in the smoke. She couldn't breathe. She was suffocating. She finally gave up after a while and stopped her breathing. But, she didn't die. Inside of her, her heart was getting attacked by the darkness. It tried fighting back, but the darkness engulfed it. Inside of the heart, the little amount of darkness was growing. It gained in exponential amounts. Soon, the light inside was smaller than the darkness. The darkness was now the powerful one. Sadly, he couldn't get rid of light; he could only make darkness stronger. However, he decided to use up more energy than normal to make the darkness pretty much crush the light. After a few minutes, he left her heart and became a stallion again. Celestia was lying on the ground, with an occasional twitch here and there. "The process is complete. Now, I'd better leave, because I put in a lot of darkness. Plus, she's an alicorn. She will probably utterly destroy me if she sees me in here." He turned back into darkness and escaped the chamber quickly, so he wouldn't have to fight this powerful pony when she wakes up.

A white pegasus was walking alone. She had white fur and a beautiful, even whiter mane, with a heart as her cutie mark (which was also white). She was depressed. Her parents were dead. Her brother left him. She was permanently banished from her old city. She was alone. When her brother left her, she walked in one direction, and she walked the other. However, all she found was a giant mountain range that was impossible to climb over without special equipment. So, she walked back, towards the direction he went. She knew that both of them were supposed to never split. But, they did. Now, he's probably ruining some pony's life. She had to find him and fix whatever he was doing. She looked off into the horizon and saw a town. By it, there was a giant city hanging off of a cliff of a giant mountain. Up in the sky was a dark cloud of darkness. She felt his presence off there. That must be where he was, she thought. He must have created the clouds. Huh, he must have learned some new tricks while I was gone. She took flight and sped off towards the town. Hopefully, the town had some hope to be saved. After a couple of minutes, she was at the gates of the town. Inside, she saw many angry-looking ponies. She calmed herself and looked into their hearts. She saw that they were shrouded by darkness.

Shit, he's already here.