Harmony.

It is our guiding principle, to live together.

The sound of soft scratching filled the room, a low burning candle flickering and spreading Celestia's form against the walls of her tower.

Taking a short break Celestia sighed. "Even two hundred years later, I am still dealing with your schemes. Always wheels within wheels with you dear sister."

Looking up the White alicorn gazed out of her window, her sister’s moon hanging perfectly framed within its borders, a series of dark craters forming the face of a pony looking back at her, faintly Celestia could swear that she still hears that maniacal laugh ringing in her ears.

The night will last, forever!

The sound of hooves on castle stone breaks her out of her reverie, the door opening without so much as a knock, the wind putting the weak candle out of its misery as a royal guard stands on in the doorway.

"Ma'am, we have a situation."

Gazing at the slightly out of breath stallion the Princess can see a hint of fear in his eyes.

"It's about...Twilight."

In an instant Celestia is on her hooves, her expression serious as she commands the guard. "Take me to her."

The guard salutes. "Sir."

The panic rising in Celestia's chest threatens to overwhelm her as to her shock, The guard leads her not to Twilights tower, but deep into the castle's dungeon. When she arrives one look on the custodians face confirms that something is seriously wrong.

A foul stench meets Celestia's nose and she sighs, that particular smell having become all too familiar in the past few centuries.

The smell of death.

Bracing herself for a moment Celestia made her way through the thick portal and into the dungeon proper, her eyes taking a moment to adjust to the dim lighting.

It takes a long moment for her eyes to recognize what she's seeing, and even longer for her mind to stop running in circles.

Sitting before her, is Twilight, her hooves buried deep inside a Stallions torso. Her tiny horn is aglow, writing something on a piece of parchment behind her. When Celestia takes a step into the room her hoof comes down on something wet.

The small purple fillie's ears twitch at the noise.

"Since you aren't running, I assume it's Celestia herself, one moment." The filly finishes what it was she was doing and a few moments later the soft scratching sound of quill against parchment stopped. When the filly finally turns around to look at celestia, her gaze is perfectly steady.

Eyes dilated due to low lighting, breathing completely steady. Looking over Twilight’s face There is no sign of fear, or remorse. Honestly there was hardly any reaction at all.

It takes a moment for Celestia to find her voice but she does, her expression falling.

"Why twilight..”

Looking down at the corpse Celestia’s expression turns sad. “You know the law, it was the first thing I taught you."

The filly looks down at her bloody hooves, seeming to inspect the blood sticking to her purple fur, as she watched she notes how it dried into small clumps. "I wasn't aware that the law extends to prisoners slated to be executed. He was going to die in a few hours anyway. And besides." The small unicorns horn lit up, a book floated over to Celestia bathed in a magenta glow Celestia.

Grasping it in her magic, Celestia recognized the book as the last one she gave to Twilight as her next assignment, the title "Anatomy of a modern pony" standing out on it's cover.

"It was incomplete, it lacked a lot of details, the proper layout of the organs, variances in age, sex, and species. I found it terribly incomplete"

The entire area lit up with a violet glow as scrolls scattered about the floor float up, turning into a neat pile at Celestia's hooves.

Her expression unreadable Celestia opened one of the scrolls herself, a soft golden glow wrapping itself around her horn. Her eyes scan through a complete breakdown of the heart, it was hardly anything new to her eyes, but it was far more detailed than any filly should have been able to recreate.

Celestia's stern gaze falls upon the filly before her, sitting in a small pond of blood and looking up at her, her steady gaze showing merely a hint of pride at what she had accomplished.

Slowly, as Celestia’s fears begin to dwindle, somewhere in her mind gears begin to turn in mind, wheels within wheels beginning to spin.

Harmony has given her a gift.

"Tell me young one, how did you feel when you ended this prisoners life?" Celestia gestures toward the cadaver lying on the dungeon floor.

The young mare in question frowns, her eyes going unfocused as she attempts to answer.

"I can't recall, I was only thinking of pursuing knowledge at the time. he might have been yelling, but I don't remember anything he said if I'm being honest."

Rolling the scroll up in her magic, a flare sparks from Celestia's horn, catching the scroll itself on fire, the entire time the Alicorn's eyes were locked on her student's.

A spark of indignation, nothing more. Not even anger.

The wheels begin to spin faster.

"Interesting, I believe I may have uses for one such as you. Not many are born unable to connect with others as you, Come child." Celestia turns and walks out of the dungeon, startled guards staring at Celestia's bloody hooves, and when she left a moment later, a filly with stains moving up to her shoulders, and all over her chest. Many looked ill.

~~~~~~~

Twenty years later

The sound of scratching fills the room, a flickering candle sending a horned shadow about the room.

The door slowly creaked open and a figure steps into the loom, a new candle replacing the previous one.

"Are you quite sure about this twilight? Doing this will remove any chance of your ascension."

The scratching stopped as the quill slowly floats over to a nearby inkpot, a magenta glow fading from it. "I've done my own research on the matter Celestia." The quiet monotone of Twilights voice almost making her sound bored. "We both know that with my lack of empathy I lack the critical spark to trigger ascention. If your plan is to succeed, I'm going to need to be around for her return."

Turning to face Celestia Twilight paused for a long moment before continuing. "I am loathe to add further compulsions to my mind as well as you, but even thinking about it logically I won't get what I truly desire in a single lifetime." Twilight’s horn lights up, her magic grabbing the scroll she was working on. "I've completed work on the three Sections as you requested. You shall be in charge of Sections One and Two. The limitations of the spell make it difficult to use without..."

"I am not some white flower that needs coddling twilight, I know exactly what I am asking." Twilight's eyes narrow for a moment before continuing. "We must break them, individually. the limitations of not leaving lasting marks on their bodies narrows our options. Intrusive methods are restricted due to our current medical knowledge. I have outlined a plan for general cases, but if they resist the first three weeks, I may need to get personally involved."

Rising to her hooves Twilight twilight slowly makes her way to the doorway. "I don't wish to delay this any longer. Is the monster properly secured?"

Following behind Twilight Celestia sighs. "Yes, I truly wish there was a better method, but we've not managed to capture any of the originals my sister made."

Standing before a iron door Celestia takes a deep breath and opens the door, watching as twilight steps inside. Closing and locking the door she watches as her student slowly makes her way to the chained monster in the corner.

The beast hisses at her, red eyes glowing as it tracks the unicorn.

Celestia looks away and slides the viewing portal closed, a gasp of pain coming from the cell. Turning to a nearby guard. "Have a prisoner ready. My student is about to undergo a change, and I'm going to do my best to make it survivable."

Celestia's ear's flick toward the cell when the distinct sound of a telekinetic blade slicing through flesh, followed by the clang of shackles hitting the floor

Official personnel records: Section Three director Twilight Sparkle

Authorization level Queen required.

Director Twilight Sparkle:
Gender: F
Race: Unicorn Vampire
Clearance level: Apprentice
Relevant information:
Aside from the symptoms of Vampirism which T. Sparkle is suffering from, she exhibits many of the symptoms of sociopathy, such as lacking empathy for ponies and an inability to form lasting personal bonds. Subject has been shown to only acknowledge Celestia's instructions. How Celestia keeps her under control is never directly observed, speculation includes trading to acquire blood, or perhaps even physical stimulation.
Additional notes:

Author's Note

First chapter of a new story.

done with the help of a new editor.