The Destruction of Harmony
Darkness had shrouded the land, Ponyville was in ruins, hell, all of Equestria was in ruins and the only one left was Princess Twilight Sparkle she trotted into the ruins tears in her eyes, this was the first time she'd returned in years, and this was all that was left, she was alone now, well alone except for the one who started this, the one who had began it all, 3 short years ago.
***
Screams filled Canterlot's castle, to origins of which were from none other than Celestia's bedroom, a cold sweat came over her as she awoke from her dreams, eyes wide, and breathing heavily. Luna rushed in, obviously worried about her sister, this wasn't the first morning she'd awoken like this, and her health was deteriorating, even when she was sleeping it was restless and she was loosing her mind, sure it was slowly, but she was still losing it. "My sister, are you alright?" Luna rushed to her sister's side, to which Celestia replied,
"It was the dream again, I was destroying Luna, killing my subjects, destroying the many villages and cities, and Canterlot fell, many tried to stop me, but I just couldn't be...I don't want this future Luna, I don't," She cried softly into her pillow as Luna patted her back, comforting her sister, but she recognized the nightmare's the feeling of breaking, the preminitions of death, and she felt that this was something she could attempt to stop before it began.
***
Twilight Sparkle and her friends arrived at Canterlot's Castle for an emergency meeting, spear headed by Princess Luna, she was not told exactly why the Elements were needed, but she knew that it was urgent and she should probably make herself present. It had been a year now since she had defeated the greatest threat in Equestria history, and seen her friends, as they began to flood out of the train she made it a point to get to them as quick as possible, embracing them all, noticing they all had their elements, as she had. "It's great to see you girls again, it's been a long year, and I'm so glad I get to see you again," Pinkie was the first to respond,
"Oh my goodness Twilight it's been forever and I'm sure we've all missed you so much, I for one have been all mopesy dopesy, trying to meet up with you again, but the cakes have been running me left and right and-" AppleJack covered her mouth.
"Twi, as Pinkie Pie said, I'm sure we've all been missin' you, but we need to get inside and get to this meetin' right?" Twilight nodded and they headed inside.
***
"Princess Twilight Sparkle, and friends, I thank you for coming on such short notice, a threat to all of Equestria is rapidly growing, and they're the same creature that brought fourth Nightmare Moon, the Nightmares," The group Gasped as one Twilight being the one to respond,
"B-but Princess Luna, we saved you from the Nightmare's we assumed they had been defeated,"
"As I had assumed, but, they appear to have a new target..."
"And that target would be?"
"my sister."