Twilight groaned as she pulled herself up from the cavern floor, her body sapped of energy from blasting random shot after random shot of the smiling image of her foalsitter overlaid on the various crystals in the room. Her mind was a storm of emotion, hatred, betrayal, pain, remorse, and exhaustion. Just an hour previous, she had confronted her foalsitter from her foalhood, demanding an answer for her behavior, only to find out that she wasn't her foalsitter. Her friends had abandoned her, her mentor was mad at her, and she was trapped in an unknown location, while her brother was soon to be married off to a pretender.
She looked around the cavern walls, looking for any way to leave. As she tried to light her horn to cast a simple light spell, her horn sent a sharp pulse into her head and caused her to cry out in pain as a spike of pain flowered through her head. She shakily stumbled over to one of the crystalline walls, one not pock-marked in burn spots from her horn, looking for some semblance of balance as her world spun. However, as soon as she went to lean against the crystalline wall, she fell through the wall, and immediately had a sense of weightlessness, before abruptly slamming into the hard floor and blacking out.
I sat silently, unmoving, unbreathing, unalive. As close to death as I could get, as death had always refused to take me. Things that would kill a normal creature, or even some of the stronger ones, like Breg-Dar the Dragon Father or even the near godlike princesses of the pony tribes, barely made me feel a thing. When I learned of my immortal and undying state, I spent millennia traveling around the world, called many things by the various races around the world. The Zebra called the planet "Soltera" or 'Plane under the Sun', the various pony tribes called it Eques, and the dragons called it 'Prlathiara', named after their goddess of Creation.
However, for the first time in nearly 1,750 years, a presence entered my prison, bringing me from a state of eternal hibernation to surprised consciousness. The last creature to enter my prison was the Solar Diarch, Princess Celestia, merely asking why I was putting myself into a self-imprisoned stasis. I never answered her, as I know she wouldn't like the answer. Opening my eyes for the first time in nearly a millennia, the pitch-black darkness of the spacial pocket seemed to glow before my eyes. The thud of a body hitting the floor of the small black room drew my attention as I looked over at the unmoving body of a small lavender unicorn, her chest rising slowly the only indication she was alive.
I moved closer to the unicorn, looking down at her, the star marking on her flank indicating a sense of importance, something the Tree always enjoyed doing when it interacted with the mortals it so dearly loved. With a single movement, the black, lifeless room vanished, replaced instead with a simple bedroom, although probably woefully outdated to what this mare is used to. As light and color fed into the room, my shape slowly reformed, until I looked like a shadow cast by a stallion given life, before condensing into a solid shape of an Earth pony stallion with a black coat. Frowning slightly, the coat color changes to light orange, and my mane slowly grows from the leftover wisps of my formation, taking on a light green tone, before shifting to a sky blue color palette, much like the mints used in the griffon kingdoms.
Refocusing on the mare, I carefully lift her up with the ambient mana of the spacial pocket and lay her on the sole bed, before forcing the mana through her body, acting very similar to the healing spells unicorn medics would cast in the various battles between the pony tribes, though with less of a glow, as I don't use my own mana, but the ambient mana of the room. I remove the ambient mana that didn't join with the mare from her body, and step back. Almost immediately after the ambient mana has left her, she gasps and bolts upright in the bed.
"What are thee doing here, child," I ask the mare, my tone low and calming, much like that of a father talking to his child. As soon as I speak, the mare looks over at me, then quickly lights her horn in an attempt to defend herself from me. "Calm thyself, I'm not your enemy, if thy wish to leave, the door is behind thee."
"Who are you, and why are you talking in an older Equestrian dialect?" The mare asked glancing at the door on the wall, warily.
"I have many names, many lost to time, however, thy may refer to me by the name given to me by Celestia, Infinitum," I answer the mare, as I sit in an old armchair from my childhood home. "Our dialects are different as I haven't spoken to another living soul in almost 2000 years".
"2-2000 years," the mare whispers softly to herself, the spark of curiosity flaring in her eyes before quickly vanishing and giving way to worry and anger plastered over her face.
"Tell me, child, what has thou so perturbed," I ask, my face blank as I watch the filly look up at me.
"Twilight, my name's Twilight," Twilight speaks, before sighing and sitting on the floor. "There is currently a wedding going on between my brother and my foalsitter from when I was young, however, she seems different, evil, and when I tried to point this out to my friends, they didn't believe me and just said that I was jealous of her for stealing my brother away."
"Were you jealous?" I ask, my dialect quickly becoming more complacent with the more modern Equestrian dialect. She looks at me with a frown as I chuckle. "I'm merely curious, Twilight, but jealousy doesn't cause another pony to become, as you say, evil."
"I think when I first heard about my brother's wedding, I was jealous, but when I found out it was my old foalsitter, I was so happy, as me and her used to be such great friends," Twilight smiles at the fondness of the memories before it vanishes being replaced by a frown once more. "However, today, she seems like an entirely different pony, she's mean, standoffish, and has this air of superiority, but no one believes me when I tell them that something is wrong."
"Hmm, and how did you end up down in the caverns far beneath Canterlot," I ask the unicorn.
"Well, I was getting really upset at all of my friends and mentor not believing me about her, so I approached her myself, however, she cast this weird-looking green fire that sunk me through the floor of the castle, and I found myself in this crystal cavern with her laughing at me from the crystals, and I got so angry that I used all my magic reserves trying to destroy the laughing illusions," she sighs and shakes her head, cheeks slightly red from embarrassment.
"Green fire, huh?" I tap a hoof to my chin. "May I ask who the bride is, Twilight?"
"O-Oh, um, it's Princess Mi Amore Cadenza," Twilight spoke, before quickly adding. "Or Cadence, as she prefers to be called."
After a short moment of silence, I let out a soft laugh. Twilight seemed a bit nervous at the random laugh and slowly stood up and began inching closer to the door.
"Sorry, please forgive me, I'm just surprised that she finally found a special somepony as you ponies say, I suppose that means I lost a bet however," I sigh and scratch the back of my head, before glancing back at Twilight who looked even more confused than before. "Princess Cadence is very likely also being held down in the crystal cavern, as changeling teleport magic can only link one location, and I highly doubt they would have enough time to change the teleport location after body-swapping Celestia's favorite niece, so please, when you find Cadence in the cavern, make sure she stays safe and that she gets to be the one to say 'I do' instead of that horrid bug queen. Oh, and Twilight, thank you for talking with me, however brief, it has been so long since I have had company."
With a quiet squeak, the ambient mana of the room picked up the startled unicorn and forced out of the spacial prison, and carefully placed her on the ground, before releasing her and dissipating. I sigh as watch the confused unicorn look back at the crystal wall, before quickly looking off to her left and running off, leaving me alone again. However, for the first time in nearly three millennia, I am sad at the leaving of another.