Maria
Outside of the Mysterious Tower, three Teeny Ships in the colors of Pink, Green, and Light Purple arrived while exploring the vast worlds they saw. However, this tower they found was never spotted by them before.

"Pinkie, Fluttershy, Do you know about this place...? If not we better land..."
Marisol
"Nope! Not a single clue! Let's investigate this new place!!"

Pinkie called with a excited tone before the three Teeny Ships landed on the grass near the tower. The trio then got off their ships after they fully landed.
Robert
"Oh my... W-We never saw this while traveling... You think th-theres any visitors around...?"

Fluttershy nervously said as the trio walked closer to the gate of the mysterious tower place, with the yellow girl hiding behind Rarity as she wasn't sure what it was.
Van
*The three, upon a quick look around, can see the large, strangely shaped, tower seemingly react to their presence. The front door having a "Click" Sound as it unlocks for them. Though no one is around to unlock it.*
Marisol
"Oooooo! There ARE guests here wanting us in!!" Pinkie Pie would of showed no signs of fear, and opened the door. She then ran inside to do further investigating
Maria
"Pinkie no!!" Rarity gulped before grabbing Fluttershy's wrist softly. "Darn it!! We gotta hurry!!" Rarity pulled her ally forward and followed Pinkie as fast as they could.
Robert
"E-Eeeeep! Wh-Why meeeee!"
Van
*Upon entering the tower the group would be at the ground floor. They would see a spiral staircase going up the tower. However the staircase would seem incomplete as it lead into a strange door partly up it. *
Maria
"My goodness! I think i need to decorate and fix up this place when we find whoever unlocked the door for us..." Rarity said to herself mostly, as the trio began walking up the staircase and towards the door that was partly upwards.
Robert
"May i... Uh... Help you decorate by any chance, Rarity?" Fluttershy nervously smiled before Rarity nodded to the yellow skinned girl as the three girls approach the door after a few moments.
Marisol
"Oh! Oh! May i help out too!? I wanna give this tower's interior a nice coating of friendly colors!!" Pinkie Pie cheered as the trio opened the door and entered wherever the door lead to.
Van
*They entered through the mysterious door and ended up in a vast room with many floating stair cases. The stairs they were on led to another door which seemed to lead to another area of this "Pocket space"
Maria
Rarity and her two friends looked around the staircase as the trio began walking normally up the stairs towards the next door. "You know what really grinds my dang gears the most...? The fact Sunset hasn't been with any of the six of us in ages! What is Celestia's name is she doing out in this massive amount of worlds all by herself!?" Rarity slightly ranted but sighed to calm down.
Robert
"Perhaps the answers you got Rarity will... Uh... Hopefully be at the top of this giant tower... I hope Sunset is safe..." Fluttershy placed a hand on Rarity's right shoulder. "But i have a odd feeling we are not alone however..."
Marisol
Meanwhile Pinkie was just jumping up and down on the stairs towards the door, not even listening to Rarity and Fluttershy at all.
Van
*The group would continue through the weird staircases and doors, each door sending them to another place in the weird space. But eventually they would find themselves inside of a circular room with different shapes for the windows. A large seat and desk in the middle of the room but no one sitting there.*
Marisol
As the trio went to the circular room, Pinkie Pie saw no one in site. "Aw maaan...! I thought we were gonna meet someone to fix the tower or something...!" She sighed before exploring around the room besides the desk, as Rarity and Fluttershy got closer to the large seat and desk.
Maria
"This has to be a tower owned by someone... Surely the owner of this build would be fine with some renovations on the interior of their tower...! Right...?" Rarity said before noticing Fluttershy with a frown but her eyes were covered by her hair.
Robert
"This isn't abandoned, Rarity... Whoever owns this place is watching us... But i can't tell who they look like, so that awnsers a question you would say..." Fluttershy said with a calm but serious tone, before looking around the area.
Marisol
"Fluttershy, your silly! If someone was watching us, they would be behind one of us goofball!!" Pinkie began giggling softly before going to a window and looked towards the sky. "Someone watching us, what a funny concept...!" Pinkie said to herself and continued watching the sky and stars.
Duane
*As if on cue, a puff of magic would appear at the entrance of the room behind the group. When the smoke cleared, a woman who barely had her eyes open was standing there. She raised her arms into the air and gave a long yawn before realizing she had company.* "Oh... When did you get here?"
Maria
"Sweet Celestia!!" Rarity jumped and quickly turned around towards the woman. "Erm... You see... We kinda were looking for a friend called Sunset Shimmer... Do you perhaps have any sort of idea where she could have gone to...?"
Robert
Fluttershy slightly jolted from the puff of magical smoke, before turning around to face the elder. "Not to mention she wields a weapon six of us have upon arriving in this massive amount of worlds... Something like this but oddly enough different shaped..." She summoned a Keyblade to show what Fluttershy was explaining.
Marisol
"And the fact she has a inner dark side hidden away in her very bei—" Pinkie mentions something else before being cut off by getting her mouth shut by Fluttershy and Rarity's hands.
Maria
"Can't you stay distracted by lesser important topics FOR FIVE MINUTES!?" Rarity yelled at Pinkie Pie with a slight panic in her voice.
Duane
"...Are you some of those keyblade wielders that appeared suddenly one day? Your appearance caused me a great headache..." *Mod would walk over to her chair and sit down, yawning again.* "Let's just start from the beginning... My name is Mod-Gink. This is my tower where I reside and watch over what goes on in the worlds. Since you are all keyblade wielders, and I can tell you aren't with the darkness, I'll answer some questions if you answer some of mine.."
Maria
Rarity gulped as she cleared her throat. "My name is Rarity, darling... The one with pink hair is my friend Pinkie Pie and the lighter pink hair is my other friend Fluttershy..." Rarity then tilt her head and looked at her two friends, who both shrug at her. "Uh... Sure darling... Ask any of us one at a time if your fine with that..." Rarity agreed to the condition of getting answers by following Mod-Gink's request.
Marisol
"Yeah! We got a lot of info if you need it! A friend helps out another friend after all!" Pinkie Pie smiled brightly at Mod-Gink with her eyes closed.
Robert
Fluttershy made her keyblade disappear before the girl sighed and the trio lined up to answer questions the elder had in store.
Duane
"Rarity, Pinkie Pie, and Fluttershy... Pardon me for being blunt with this question, but where do you come from? How did you get here? What do you remember?"
Maria
"Well... We actually were in a place called Equestria... Living our as not humans but ponies oddly enough... But that changed when a dimensional rift ejected two humans out and when they clashed fists, they kinda altered our appearance to what your seeing to this day... Their names were Louis Cruz, our dearest friend... And Darklord who kinda caused us to drop in here due to his machine not working fully... He's kinda our enemy but i doubt he nor Louis followed us through the rift he made... Us three, our friends Rainbow Dash, Twilight Sparkle, and Applejack all followed Louis in his journey to protect dimensions across the skies and space... And sadly our world Equestria got destoryed by Darklord and his little planet core ripping energy blast... However we did escape the lost planet or world in this case..." Rarity then remembered her sister Sweetie Belle and began to shed a single tear that dropped on the ground. "Finally as for memory, at first me and my six friends were scattered apart... But eventually after meeting a ice magic user who was consumed by darkness, the seven of us met... Only with Sunset Shimmer being unable to control her darkness... A girl with a cloak mentioned something to Sunset as Darkdream Shimmer... Like some sort of evil counterpart in her body..." Rarity finished explaining to the elder.
Robert
"Thats where we are today... Trying to figure out who this Darkdream Shimmer is fully and if we did split them a part, who knows what could go on..." Fluttershy shivered at the concept she spewed.
Duane
*Mod just stares for a moment, processing everything she just heard. After a short bit a kettle and a beer cup appeared, the kettle pouring what can be assumed to be tea into the giant cup. Mod muttered before drinking* "Okay then... Gonna need this early..." *After taking a big gulp of her drink she put her drink down.* "So this confirms there are more than one world/dimension that exists... And that you... Seven came from them. It makes sense you would be confused... If your world was destroyed by a force outside of this one, I don't know what would bring it back. But that can be researched overtime. Maybe there is a reason you were all sent here..." *She took another drink.* "In this world, darkness lurks within every heart. It is when you call upon that darkness you begin to become a slave to it, and eventually consumed by it. It seems your friend has a powerful darkness within her that is able to manifest itself as a different personality. It would be best to be careful around her, unless you wish to be attacked at any moment without warning. There is a possible way to deal with her, however it is too dangerous for me to recommend. The one time it has happened caused plenty of trouble for everyone, even those who weren't involved. The safest option is for her to gain control of her darkness, which is probably the hardest to do... If you wish not to harm her, that is."
Maria
Rarity, Fluttershy, and even Pinkie Pie widened their eyes with the intel. Rarity however balled her fists in a slight anger. "Great... Just great... There's no hope for our world... Louis is who knows where he is... AND now theres a deadly option to get rid of Darkdream Shimmer..."
Marisol
"That... That means..." Pinkie Pie heard the entire conversation clear as day, and for the first time in a long while, her smile was reduced to a calm but saddened look. "We ain't stuck here right... Right...!?"
Robert
Fluttershy however looked at her two friends, and pulled a string from under her shirt which hid a necklace that was shaped like a butterfly but had no color at all. However there was a faint bit of light left inside of the gemstone on the necklace. As Fluttershy walked towards a window, she sighed. "We are not stuck... I know someday there will be a way out of this dimension and Louis will be brought home as well... I know he will... He saved us many times in situations... We can do the same for Sunset's sake..." Fluttershy turned around as the faint light within the gray butterfly necklace grew slightly as a responce to Fluttershy's words.
Duane
"Now now, Fluttershy is right, While there isn't a way to get your world back now, you may be able to do so in the future. It is more important to gather all your allies and help your friend first."