Triumphant, Princess Celestia traveled back to Canterlot to find her so-beloved little sister.
Luna… I’m so happy we could see each other again… Those thoughts were playing in her head again and again.
When she climbed the steps of the royal stairs leading to the throne room, where Luna was waiting for her. She couldn’t bear to wait any longer, and opened the large door.
A blast of dark energy hit her, sending her flying in the opposite wall. Sounds of bones and flesh hiting hardly the marble triggering a scream of both surprise and pain…
When the pain left a bit, Celestia was able to opened an eye. And what she saw… Turned her world into a living Nightmare… Her sister was now as tall as herself, her fur as black as night, and her eyes looking like snake’s…
“No… Not you…” whispered the ivory alicorn
“Sister… This has to end. I can’t allow you to kill anypony else…
“I… I did everything to protect you!!!!” shouted Celestia, her eyes filling with tears.
“I know… And it makes things even worse…” The ebon mare lowered her head, trying to hide the sorrow that was burning inside her.
“You can’t be!!! You can’t become Nightmare Moon!!!”
“I’m not… But what Starswirl didn’t see, is that something else worse than Nightmare Moon could happen…”
“W-What do you mean? You meant everything to me! How could you betray me this way?” Celestia went back on her feet, anger filling her veins and sending shockwaves of killing spree to her brain.
“Do you want to know how our citizens call you now? They vreated a name for the monster you’ve become! THey do not fear Nightmare Moon, they cower before the M-“
“DON’T SAY A WORD!!! I’LL HAVE YOUR SOUL TURNED TO ASHES, YOU FILTHY TRAITOR!!!!!!”