"No" Luna whispered to herself "NO, NO NONONONONONONONONONO NO" she started to shout while repeatedly slamming her two front hooves onto the wooden floor "no" she said once again before falling to the floor tears flowing from her eyes.

Pinkie was snapped out of her shock by Luna while she screamed and shouted, and now before her was a broken lunar princess. "Princess" Pinkie spoke softly while slowly walking to the now sobbing princess. "Princess, are you alright"

There was no response of Luna as Pinkie moved to face the princess "princess please we have to do something" Pinkie tried but once she realised she could not do anything her own lower lip began to tremble as she quickly started to cry. "I'm sorry I failed" Pinkie got out though her sobs "this is my entire fault it's my duty to protect her and I failed" Pinkie screamed tears flying in all directions.

"No Pinkie" Luna said her sobs slowly stopping "it was never your duty, it was always mine, I created Nightmare Moon though my jealously and sorrow. And now my dark thoughts' have now gone into my daughter. Which has in turn makes this all my fault not yours Pinkie"

"But what are we going to do" Pinkie said tears still flowing "Nightmare Moon has vanished, and with Twilight are her new host, the elements won't work, will they?"

"No I'm afraid not" Luna said standing back on her own hooves "but we must warn my sister, she may be in grave danger"

"What why?" Pinkie asked "princess Celestia is all the way in Canterlot, why would she be in danger"

"My sister was the only pony who was able to stop me and Nightmare Moon last time" Luna explained "and even without the elements my sister will still be strong enough to take on Nightmare Moon, but with Twilight as her new host, I believe Nightmare may try to use this as a distraction so she can defeat my sister. Even with Twilight's powers Nightmare Moon may still not be able to fully take on my sister"

"Then we must get Spike to send a letter to the princess" Pinkie said about to run out to find the dragon, but was stopped by Luna

"No need Pinkie, me and my sister can send letters easily to each other with a simple spell, quickly get me a parchment to write on" Luna commanded to which Pinkie quickly pulled out a parchment and quill as if from nowhere. Luna was about to ask how Pinkie got the items she needed without even moving from the spot, but ignored it as she had more pressing matters to do.

After Luna quickly wrote the letter she cast the simple spell to send it to her sister, before turning to Pinkie "now Pinkie we must urgently get to Canterlot to assist our dear sister"

"But the train does not come back until morning" Pinkie said to Luna

"Very well then" Luna said getting down to her knees "then we must fly there" she said to a shocked very shocked Pinkie "quickly get on"

"But princess" Pinkie tried to object

"This is not the time, we have wasted valuable time already, and we must make haste to Canterlot immediately"

"Very well then" Pinkie shouted excited to fly on the back of a princess "to Canterlot" she jumped in the air landing on Luna's back with a thud which made Luna yelp in the surprise

"Please don't do that again" Luna said while looking at the pink pony on her back

"Sorry" Pinkie sheepishly apologised

"Now we must fly over the Everfree forest to quickly get to Canterlot" Luna explained moving to the smashed window "are you ready Pinkie" Luna asked the pony on her back

"Ready as I'll ever be" Pinkie smiled "you know, I never really understood that saying, how can I be as ready as I'll ever be" Pinkie was able to get out just before Luna jumped out into the sky, and extended her wings to start flying, while getting excited "weeee's" from the pink pony as Luna flew across the night sky.

By the time Luna and Pinkie were over the Everfree forest fire and smoke could be seen emanating from Canterlot castle. Once seeing this Luna knew she had to land, as she would not make it in time, taking a quick glance Luna looked down and started her landing procedures. Pinkie meanwhile was too shocked to even speak or do anything else after she saw a large tower burst into flames and collapse. Once on the ground Luna was the first to speak. "We're are too late, Canterlot is in flames" Luna spoke grabbing Pinkie with her magic "we must hope our sister was able to obtain our letter before Nightmare Moon was able to get to the city"

"Will every pony be ok" Pinkie asked concerned for the many lives in Canterlot

"Don't worry Pinkie, my sister would have evacuated Canterlot immediately" Luna said trying to calm the unset pony "plus Nightmare would first go after my sister before getting the population to submit to her, so don't worry, we must hope that my sister would be able stop Nightmare Moon"

"But what if princess Celestia cannot stop Nightmare Moon" Pinkie asked

"Then my dear pink friend… it will be the beginning of the end"

Nightmare Moon walked triumphant down one of the corridors of Canterlot castle, her now fanged smile clearly visible. But there was one thing left to do, and it was something that stopped her all those years ago, and now that thing stood between her endless victories, Princess Celestia.

In the throne room Celestia stood with many Unicorn guards, each ready to protect the kingdom. Celestia had quickly received her sister's message and immediately prepared the guard. Nightmare Moon had returned and was using the body of her dear student and niece, at first she did not want to believe it, but soon believed as when it was time to raise the sun the moon stayed locked in place by a powerful dark magic, a magic that she once fought before a long, long time ago. Celestia did not want to even harm Twilight, but at the same time she did not want Nightmare Moon to take over her precious kingdom, as this would cause untold pain and misery across her land.

Celestia watched as her Unicorn guard prepared for battle, only 30 were able to fight and Celestia hoped it would be enough to stop Nightmare Moon. Taking a sorrowful breath, Celestia sensed the destructive dark magic of Nightmare Moon's magic along with a small trace of Twilight's. It was behind the double doors. Looking over her guards she spoke one last thing before battle.

"Prepare my friends our enemy is close, and she will spare no mercy to either us or our families" Celestia shouted across the throne room "we must stop her, or Equestria is doomed"

"For Equestria" the Unicorn captain Silver Magic bravely shouted

"For Equestria" the rest shouted along with Celestia herself all ready to face the dark power of Nightmare Moon.

Suddenly the double doors smashed open, sending splintered wood across the floor of the throne room, and there in the entrance stood Nightmare Moon in the corrupted and possessed form of Twilight Sparkle. Every pony in the room watched carefully as Nightmare Moon confidently moved in each hoof she paced made the front row of Unicorn guards move back. She then started to laugh

"Is this all you could muster to stop me" she laughed even harder "I'm more powerful than ever before and all you could do is sent 30 guards to stop me, ha" Nightmare Moon said in two voices, before pointing her horn at the now shaking guards. A blast of dark magic erupted from the horn of Nightmare Moon hitting many unprepared Unicorn guards and sending then flying, the rest quickly charged into battle to face the nightmare, only to be swept aside by Nightmare Moon's powerful magic.

Soon only Celestia and Nightmare Moon stood opposing each other, the Unicorn guards all spread over the floor each too injured to continue the fight.

"Your guards are pathetic Celly" Nightmare Moon sneered "they will fall just as quick as you will"

"I will stop you Nightmare, even if it is the last thing I do I will stop you" Celestia shouted back at Nightmare

Nightmare Moon only laughed at the threat of the princess "and do harm to your precious Twilight Sparkle"

"I will do what I must, Nightmare… please forgive me Twilight" Celestia shouted as she shot a powerful beam of magic at Nightmare who only fired her own beam, and soon both Nightmare Moon and Celestia where locked in combat, their magic meeting in the middle as sparks flew from each casters horns. Every once and a while the magic in the centre would shoot out hitting the sides of the room which made the stone walls explode in showers of stone, sweat could be seen gathering on each pony's foreheads, but neither of them showed signs of weakening.

"Do you want to know something Celly" Nightmare struggled to get out of her lips "Twilight is screaming for you to help her, I can hear her screaming Celly all for you"

"Twilight" Celestia shouted losing control slight of her magic, which gave Nightmare Moon what she wanted and at that time Nightmare Moon unleashed her full force of her dark magic straight at Celestia, which Sent Celestia down to the floor badly injured. Once the magic glow faded Nightmare was struggling to breathe, the battle with Celestia had nearly weakened her, but she still revelled in the defeat of her enemy.

Nightmare Moon slowly walked up to the downed princess, "I'm going to destroy you now Celly and there is nothing you can do to stop me, not even your sister or your niece. And then once you are nothing but dust and ashes, your kingdom… shall kneel before me and if they don't, well let's just say they will be sharing your fate" she laughed before lifting her hoof to strike the final blow. Unexpectedly Nightmare's hoof stopped mid strike, surprising her. "What? No! Impossible!" she was only able to get out as her eyes started to change; the darkness receded until there was nothing but the original host's normal purple eye colour.

"Princess" a torn up voice softly spoke

"Twilight" Celestia said looking up at the form of Twilight her body still in the position of when Nightmare Moon swung her hoof to deliver the final blow to her "is that you"

"I'm so sorry princess I did not mean for this to happen, I'm so sorry" Twilight said breaking out in to tears "I just wanted to know about my past, I wanted to remember my lost memories"

"I forgive you Twilight, and I'm sorry to, I should have never done the things I did to you. You should have kept your memories, and I'm so sorry for taking them" Celestia said small tears running down her face

Twilight winced in pain as she felt Nightmare Moon move within her mind "princess please go, I cannot stop her, please go" she pleaded to her mentor

"Good bye my special filly" Celestia spoke softly "we will save you, I promise" she said standing up and the began using what remained of her magic to use a teleportation spell

"Please hurry, princess she's coming" Twilight once again winced in pain "please tell my friends, my family I'm sorry"

"I will Twilight I promise"

"Please tell mother… it's not her fault and that I'm sorry" Twilight said before screaming in agony as the darkness once again covered her purple eyes, leaving nothing but pitch black eyes.

Celestia dropped one last tear before her spell was complete; she disappeared just as her tear hit the floor. Meanwhile Nightmare Moon had once again complete control over her host's body, but once she realised her mortal enemy Celestia had teleported out she screamed in bloody rage, making the stone walls shake and crumble, before she started to tear Canterlot apart in blind bloody anger.