Escape to the North

                  "WHAT?! WOLVES ARE GONE?!" shouted Celestia, when a scout came with bad news.

       The soldier was scared. His master was never as angry as she was now. He didn't even breathe.

          "Do you know where they went?" asked the evil Princess.

       The soldier shrugged. He tried to say something but it was too late. A long spear pierced his gold armor, and moved through his body. He died with an open mouth. His body fell on the floor.

                  "Yea... keep killing your soldiers and soon no pony will hold our borders," said Luna with sarcasm.

        Celestia killed five soldiers already. Dark power took full control over her. Luna couldn't do anything to stop her sister. She must run. Yes, it is the only good options. However, she didn't see her older sister for a thousand year. What if they never met again? On one hoof, Celestia wouldn't be the sister that she knew anymore. The good of the Kingdom is the second the most important thing in Luna's life. She swore to protect Equestria Kingdom... even against her own sister. What now? Rebellion? It's a risk, but there isn't another way to save this country.

           Meanwhile, another soldier came into the hall. A dead body, which was lying on the floor scared him. He gulped and said "We found trails of wild wolves. They led to the river, but..."

    Celestia looked at the soldier.

                  "But" what?!" she yelled.

                 "B-but we lost them," replied the soldier before trying to escape, but a dark force held him in place.

               "Soldier, soldier, soldier...," said Celestia with a melodious voice. The fallen princess approached limp body to her and whispered "Don't hurry, because you can have a little accident". Soldier's eyes widened. Fear painted itself on his face. Suddenly, the small body in yellow armor was slammed in sound of cracking glass, into a window.The poor pony fell down from fifteen meters. Nopony could survive this. Luna ran to the window and tried to catch a defenseless victim, but Celestia stopped her, when she was close to the broken window. Close enough to see a smashed body fifteen meters down. The Princess of the Night felt sick and turned to her sister.

              "Sister... is that really you?" Princess of the Night couldn't believe, that her loveling sister turned into a monster from a Tardis. Now she was looking at a bent body lying on the pavement.

                "Yes, It is me," said Celestia unshaken.

         Eating souls can give you  great power, but there is only one catch. If you start you won't stop. You will need more, more, and more. Every unicorn has a little part of evil in their soul. This dark part of heart, will ACTIVATEin special situations. Normal ponies, have a simple "evil magic". What does it mean? This small part of our soul is very important, because it pushes us to action, when we are mad, jealous, vengeful and everything else. But unicorns can practice black magic. Then this small part of their spirit  grows more, more and more. In the end, this very small piece of dark magic, takes control over them. What are they doing then? You see. But some alicorn are resistant against black magic. One of them is Luna. Why? There are many reasons. Some of them have a powerful psychic control, some may be able to create spell to avoid risk of control by this magic. However, the most interesting group is group of alicorns, that are born with magic of darkness. Just like Luna. Those ponies can use black magic whenever they want without having to worry about it taking control over their souls.

  Hmm, they are going to travel near the river? Clever. We won't see their trails on the densely overgrown ground. We should have some dogs, wolves or... WEREWOLF!

          Celestia jumped over her throne and ran into the forest. Worried Luna followed her.

           Princess of the Sun stood over the grave of Wolf. There were two red roses.

                     "So sad. This yellow pegasus must be suffer. Poor, poor, poor Fluttershy.  Her love is dead. What a pity," she started laughing.

                    "Sister, I don't know what are you doing, but it is a bad idea," Luna said desperatly  and came out from the tree's shadow.

            "My lovely sister! You should be glad, because I'll show you true power," said Celestia and raised her hooves.

     Her horn lit up in... black. Same as her eyes. It wasn't the same Celestia as earlier. Luna stepped back. She knew, what her sister planned to do.

           "RISE, RISE MY DEAR BEAST!" shouted Celestia with a demonic laugh. Suddenly, big, black claw came out of the grave.

It isn't possible! This beast hasn't got a soul! His soul is in Fluttershy!

             Luna thought. Suddenly, a dreadful thought  hit her like a rock falling from a hill.

This beast had two souls. Wolf's and Werewolf's. If Fluttershy has got only Wolf's spirit. It means… we have trouble.

Luna couldn't do anything. On her own eyes saw the beast coming back from the underworld.

               "YEES!" shouted Celestia still laughing.

        "My goodness," whispered a scared Luna.

A big, black monster stood on two feets. He was huge. Werewolf opened his eyes and looked at his hands with long, sharp as blade, claws. He smiled and looked at Celestia

            "Go! Find wolves' herd and bring them back here. If you meet ponies...," the evil Princess smiled, "Kill them. All of them."

                      Beast disappeared in the forest.

    The hunted became the hunter.