Twilight's point of view
We walked, all we did was walk around these long hallways, with no windows. Nopony would make a sound, only I would let out a few occasional yawns, which were rather loud and disturbing, not to mention it took me a few minutes to realize that. I would catch Raven glimpsing at me with her glasses covering her eyes, which was a bit disturbing for me. I would sometimes forget that it was the night, as the lights were extremely shiny. I swear, we walked for days. Fortunately, Luna stopped me jn my tracks and told me to look forward, as i was looking at the gold-tiled floor.
3rd point of view
"Twilight Sparkle, I called you, because we must inform you that my sister, Celestia" Luna paused, and looked down gritting through her teeth. She missed her dear sister, it reminded her when she was banished in the moon.
"Celestia, has gone missing." Twilight looked at her in awe and shock, her mouth open, her mentor gone? Twilight looked around, she was in too much shock to even say something,
"What do you mean?" she finally spoke.
"She went to a portal to another dimension, and as much I have tried, the portal will not let me go through" luna walked as Twilight and Raven followed her. Luna stopped as she stood in front of a door. The door was outlined in gold, the center pure black, with a red door knob made out of jewels, but there were two holes next to the door knob.
"Beyond this door, are more mirrors. Mirrors in which, like the time you once did, sends you to other dimensions." luna put her horn in the hole, her horn started glowing. Twilight looked at her confused, but quickly understood that Luna was telling her to help her. Without hesitation she put her horn on the other hole and her horn glowed.
"In order to open this room, two alicorn magic is required" Luna said as the door opened. Once the door opened the room was filled with mirrors, all different sizes and colours. Luna walked to a particular one, as Twiligtht followed, and Raven stood there staying behind the now open door.
"we have no time, you will be sent to another dimension through this portal." Luna showed her a mirror with black outlines, which was a big mirror with a moon shaped jewel on the top.
"Be careful, it is night time in the other dimension as you can see on the top" Twilight stopped Luna as she was pushing her.
"Wait princess Luna, i will do anything to save princess Celestia, but aren't you rushing things? I know nothing of this dimension and if i don't know anything how will i save her. Also i can't go without telling my friends, or spike." Luna sighed.
"You will know when you get there, now go the portal will close soon, and as for your friends, i'll inform them and spike." Twilight nodded at her, and without a reply she went inside the portal. After the portal closed, Raven walked next to Luna, and they both gave eachother a look.
Twilight's POV
As i went through the portal, it was wierd, and certainly different than the last time i went through a portal. Black fogs swirled and surrounded me as i went. The swirling made me dizzy but it soon stopped and I fell hard to a ground. As i opened my eyes, i saw a pink figure, she looked almost like....Cadence?
My head hurt so much, and the hard ground was not helping me at all. I was dizzy but, the pink pony, she's so clear to me. She is definitely an alicorn, I had to ask her who she was. If it was Cadence, boy, it would be my luck. The dizziness stopped, which i was glad, but it was still very hard for me to talk or speak. My throat hurt so much, who knew a simple portal could make one so weak? Finally i felt a little better, and I was a bit surprised at the fact the pink pony hadn't noticed me, after all i was groaning a lot.
"Excuse me?" i had to force my voice to sound fine, but it seemed she didn't hear me. I trotted towards her and when i looked at her face, she was asleep. Well, that was a surprise, i'm stuck in a cage with an asleep alicorn, but the stranger thing was that she looked exactly like Cadence but her hair was a different kind of curl, and shorter. There were only two kind of hair colour, when Cadence has three. I decided not to wake her up, but her sleeping position was a bit uncomfortable.
I looked around, i was definitely in a prison cell, the wall was full of vines, and the ground was definitely made of concrete, strange. I trotted back to where I landed, as I flew to the wall, my hoof didn't go through, the same thing happened when i tried to go through the floor. No wonder Luna rushed the whole thing, the portal was closing, and i forgot to ask when it opens, perhaps Celestia will know when i find her.
"What are you doing?" I hadn't noticed that the pony had woke up, and to my embarrassment, i ahd been trying to go through a wall, just great.
"Oh, umm hi I didn't notice that you were awake." i waved my hoof foolishly.
"Hi, i didn't know that i would get a new cellmate, the last one died" I looked at her surprised, died? I mean was the pony treated badly or executed?
"Died?" I asked her, and tshe only replied with a nod. I had to ask her name, she looked alot like Cadence, the only difference was that her eyes were blue and the hair. She also looked very tired, and she seemed to have a lot of bruises.
"So what's your name?" she asked me before i could ask her.
"Twilight, just Twilight" i decided not to tell her my full name, i had to get to know her first, not to mention this was a dfferent universe, it's unlikely there's another Twilight but i had to be sure.
"Well Twilight my name is Skyla, youngest daughter of Cadence." my jaw dropped, how long is this universe ahead in time? This has to mean alot of ponies are older than the ponies in my universe. Before i could ask her more questions, i could her somepony else.
"It's the guards" Skyla mumbled between her breaths. At that time i remembered i had been teleported here, I had to tell the guard something about how i came her when the guard comes over. In order to think of an excuse, i had to eavesdrop. I could hear the guards talking, they're voices it was s familiar, the voice was sickening and not pony-like. They were asking ponies how they got here, and the tired pony voices would say things like 'tried to run away', 'disobeyed the queen' and many more.
Finally the guard stood behind our cell and I now knew why the guard sounded so strange, it was a changeling in meta armor. The changeling looked at us carefully, especially at me.
"Skyla got a new friend ey?" the changeling chuckled and opened the cell, to get inside. I was a bit afraid as it moved towards me after locking the door. It's breath gave me chills down my spine as it stared at me.
"When, and why did you get here?" now it's voice was stern and cold, I suddenly froze and could not say anything. Luckily Skyla looked at my worry.
"Leave her alone, changeling" the guard looked at her and with a spear he was holding next to him, showed it in front of Skyla and the bulb which was on top of the spear, as the bulb glowed Skyla suddenly trembled and fell to the ground.
"What did you to her!?" i shouted, I had to. The changeling glanced at me with anger, but then he smiled, and soon started laughing, which was creepy and disturbing to say the least.
"Why, aren't you a brave one" he kept on chuckling as he went out and closed the gate that held me and Skyla.
"I'll keep you, on my mind purple one." as he left I quickly went to Skyla and asked if she was okay, she was conscious but she looked very tired and not to mention she was trembling. I never thought that something like this would happen in a parallel universe.