Sunset woke up suddenly. She was now in a dusty library she knew that she is in equestria because of how most of her friends looked. Adagio, sonata, aria, twilight and sunset herself were still in their human form. The rest were in the pony form. And slowly they all woke up. They all had a splitting headache and the vision was heavily blurry.
“Wha- where are we?” Asked rainbow. ”Last time princes twilight’s castle was more shiny and purple right?”
“Yes it was.” Replied sunset who was seeing around.”I think this is the hidden library which has info on well… pretty much everything.” She pulled a book and a door opened she turned to see her friends and they nodded for her to continue. She stepped through and reached the corridor of cantrelot castle.

They made their way to the throne room where celestia would be sitting. Sunset was leading the way and was explaining the guards their problem. The chief found it… amusing.

…eventually……
“T-t- Twilight?!” Screamed sunset when she saw twilight sitting there and not celestia.
“Yes… Oh! Sunset Shimmer it’s been so long.

Twilight proceeded to explain to sunset and the others what had happened to celestia.”And spike has went to the dragons to make deals on their black metal to make a new and stronger set of armour for the soldiers.”
“Wow… well, our situation recently has been a lot more chaotic recently.” Said sunset.
“Explain.”Said Twilight while giving the sternest and most quizzical look to sunset.

Sunset explained the happenings of the past few years. How the dazzlings got redeemed, how sunset and adagio and sonata and pinkie started dating,how Nero killed flash(which got twilight to crack a nerve.) and how they need to find a certain person who can help them.
“Well that certainly was… interesting? Well I think I read about 18 dimensions in existence so it’s a good possibility. But, you will tell your story.” Said twilight.
“Very well…”

Author's Note

Celestia has retired for those who didn’t understand.