DEEP BENEATH CANTERLOT...

Dempson's first thought after waking up in a glass cell, strapped to a table and gagged, surrounded by needles, was not "Where the hell am I?!" or "Am I going to die?!" No. It was, "Damnit, I hate needles!"

A grey unicorn with a chocolate brown mane and tail walked into the cell, taking up a position behind a large table, where Dempson could see many flashing lights and buttons. At the press of one, many of the needles angled at Dempson's heart. Dempson could only scream, muffled and wordless, as each of the thin pins delved into his flesh, piercing his heart and filling it with... something.

"Subject 47-Z-X, dubbed "The Puppeteer" for no apparent reason, seems to be responding positively to the condensed magical residue, now implanted within the Subject's heart," the unicorn said, glancing at both Dempson and whatever was on the table. "Subject should soon start passively producing magic due to the large dosage, thus forming their own reserve. Concluding test until further notice."

The unicorn pressed a button on the console, causing the needles buried deep within Dempson's heart to retract and the bindings release him from the table. The unicorn's horn lit up, sealing Dempson's wounds and putting him to sleep.

TIME SKIP OF SKIPPINESS

As Dempson drifted in the inky darkness of unconsciousness, he heard a gravelly sounding voice in the darkness say, "So, The Solar Tyrant got her hooves on someone else huh?" A strange flash of light appeared, and he suddenly found himself in a plain white room. He saw a horrifying looking figure. He looked like Freddy Kruger mixed with Sauron from Lord of the Rings. His armor was dark blue, with dark, near black dents where his eyes should have been. He had a large semicircle where his mouth would be, and his fingers were like daggers.

"Hey, don't freak out," The figure said. "Yeah, I look like a fucking nightmare, but shut up. My names Richard. Whats yours?"

"Jesus H. Tapdancing Christ! What the hell is this and what the fuck are you?!" Dempson shouted in a ~~completely girly~~ absolutely manly scream.

"Nice to meet you cupcake. To answer your question, I was a human. Because of the Solar Tyrant, I'm not sure anymore. Most scientists call me Overlord, but I'm the result of a magic experiment. Do you know how painful it is for your skin to be turned into metal? It hurts like a bitch."

Dempson looked around nervously, a little spooked from the information. "Okay," he said, "I know who and what you are, but what about this place?" He waved a hand around, gesturing to the empty white void surrounding them.

"Oh, this?" The abomination chuckled, "This is my mind. I can bring you in here because you're asleep."

"Uh..." Dempson was at a loss for words. He was in someone's mind?! "Why exactly did you bring me here?"

"Because I wanted to someone else that wasn't from here," It replied, "I mean, sure, I like talking to my blood brothers, but even they get tiring to talk to after a while. Plus, before you came, I was the only human here. Now, you're here."

"Well... Okay I guess? I've been in a land of talking horses for about two years, and after seeing you, I don't think anything can phase me," Dempson extended a hand, "The name's Dempson. Those horse demons call me The Puppeteer, apparently."

The creature grabs his hand and starts to shake lightly. "Ponies call me Overlord. Those that know about me anyway." He pulls up some chairs. "So, what's your story? How did you get the attention of the Solar Tyrant?"

Dempson rubbed a hand through his hair. "Well it started about two years ago, I had taken up robbing food from the ponies to feed myself. Fast forward to however long ago, I'm guessing a few days but I could be wrong, the uni-sus, who I'm guessing is this 'Solar Tyrant' you refer to, clocked me with a spell and I woke up strapped to a table surrounded by needles." Dempson paused for breath and sat down. "Anyway, a grey pony came in and pressed a button on the console in front of me. A few of those needles shot to and pierced my God damned heart, filling it with magic, as the pony said. I reacted positively, whatever that meant."

If Overlord had eyebrows, they would have narrowed. "That bitch!" He roared. He then grabbed Dempson and almost screamed, "That means she's going to send you here!" He got up and started pacing. " If she can't 'reform' you, then she's going to put you in this hellhole."

"The hell?!" Dempson screamed, "What the fuck do you mean, 'send me here'?!"

"What I mean," Overlord growled, "Is that she will make you part of Project Nova, where they will experiment on you, and turn into a monster. That's what I mean. Now, I have a plan that will help both of us. It will get me and my blood siblings free, and you don't get experimented on. You read the to listen?"

"Hell to the fuck yes, bitch!" Dempson exclaimed, "No demon project for me, thank you!"

"Okay, here's the plan. I want you to get her attention, and run around inside the castle. It may sound design crazy, but if you get her her to use up enough magic, the doors to our prison will be unlocked. We will break free, and head to a part of Equestria called the Everfree Forest. Now, you will be captured again, but I will send one of my Shadow Walkers to break you out. He will bring you to our current location, and we can go from there."

"Oh God, I really hate being bait... Fine, but you better come back for me," Dempson said, resigning to his fate.

Overlord seemed to ponder something, before saying, "Here, I will swear on the River Styx. That promise is very much real here." Overlord stood up from his chair and recited, " I, The Overlord, swear on the River Styx to come back for you and free you." Just then, thunder rolled in the background. "I am bound."

Dempson looked around the white expanse in search of the source of the sound. "How can thunder roll if we're in your mind?" he wondered. "Never mind, scratch that. I'm in, but with a strange Percy Jackson-esque feeling."

"It's weird, but you will always hear thunder when you swear on the River Styx. Either thunder, or lightning. Anyway, just to warn you, my Shadow Walkers look like zombies. But don't worry, he won't eat you. Just, don't have any sunflower seeds on you when you leave."

Author's Note

Hey, second chapter! I'm on a Goddamned role!
Leave a comment saying how you like the story so far. I'd love to hear from you.
If you find a mistake or typo, let me know!
Side-Note, before any of you comment, "River Styx doesn't exist in Equestria!" Let me remind you of two things. One, Tartarus exists, why can't the Styx? Two, I'm the author. I do what I damn well please.